Internal & External Organizational Forces

As one of the nation's leading wireless and technological service providers, Verizon Communications is one of the most successful examples of rapid expansion in the years since they first opened their doors in 1983. With 93. 2 million customers, Verizon has grown into a massive organization that continues to expand and change. These changes are a part of the organization's plan, but are and will continue to be influenced by Internal and external factors along the way.Organization Mission Verizon's mission may appear simple yet to live up to this mission is no daunting ask in an industry that is rapidly changing with technology advances. They exist to provide customers with great service and communication possibilities while following their core values of integrity, respect, performance excellence, and accountability (Verizon, n. D. ). These values are expected to be followed for not only external customers but internal customers as well.To be a leader in their industry Verizon listen s to customers, embraces diversity, demonstrates honesty, takes responsibility for their actions, and pursues the highest standard in their services. Verizon's session lays the foundation for the organizational behavior that must be accepted and demonstrated from all Verizon employees. Restructuring In early fall of 2009, Verizon announced that they were restructuring two of their business groups Into one known as Verizon Hireling.This realigning was planned to capitalize new avenues for growth and to improve productivity according to Verizon which also moved marketing execution closer to the customer-facing operations (Verizon, 2009). The restructuring included a shift of seven executive positions. Although the announcement did not state how these shifts would affect other employees and reporting chains It is probably safe to say that the restructuring brought concern and questions to their minds.Reporting chain of commands and Job duties would have been affected by Verizon's restr ucturing. According to Shoehorning (2008), restructuring, while needed to remain competitive within an industry, creates emotional conflict. Role, interpersonal, and intercrop are other types of conflict that can occur with change. Verizon management had to plan out how to deal with the conflict that would have been a common result of their restructuring transition phase. Competition Verizon has always been a leader and an Innovator In the wireless communication industry.But lately their sales have seen a decrease due to the popularity of Apple's Phone and its exclusive contract with AT&T. Even though the Phone and AT&T aren't the only competition they are the biggest for the top of the line smart phones. Other competitors in the cell phone market include T-mobile, Metro PC'S and Sprint. These companies compete by offering lower all inclusive plan rates and month to month contracts or pay as you go service. Even though these companies offer lower rates tenet coverage Is not as Drama as Verizon Ana Al& I cross the U.S. And the world. AT&T has also been widely criticized about their coverage versus Verizon's. When Apple released the ‘phone on June 29, 2007 it revolutionized the cell phone industry and raised the bar for all other manufacturers, but the biggest hit to the competition of carriers was that the only provider of the Phone would be AT&T. Research in Motion the maker of Blackberry and Verizon's biggest seller launched their own version of the touch screen phone called the Storm which paled in comparison to the Phone.Verizon started an all out aiming against AT;T and their lack of coverage for cellular use across the country which AT;T vigorously defended but seems to be true according to reports in the magazine Consumer Reports. Verizon could be on the verge of ruling the cellular industry with the impending negotiations with Apple and allowing Verizon to sell the Phone and it could be soon since Verizon is now selling the Pad. They have also see n sales rise with the ETC touch screen phone with the Android operating system that has gone toe to toe with the Phone and offers better g coverage with Verizon.The economy has taken its Economy OLL on not only the housing market and employment but all the way down to how we live our lives on basic necessities. People have had to cut back on how they shop for groceries, cutting back or even canceling cable service and adjusting their cellular plans. This has affected Verizon by customers decreasing their plans minutes or going to a cheaper competitor that will offer the same package at a lower price.Other carriers such as Metro PC'S and Sprint offer the same package of talk, text and data plans as Verizon for half the cost but the coverage is not as good so customers are willing to give up coverage for cost. The economy has also affected the products that Verizon sells as less people are upgrading their phones and holding on to the ones they have for longer periods of time and more people are opting for monthly contracts as opposed to lengthy 2 year contracts offered by the major carriers like Verizon and AT&T.Every facet of our lives has been affected by the recent economy and how we communicate is one of them. Customer Demands In recent years, Verizon has become more than Just the nation's leading wireless service provider by simply listening to customer demands and taking notice of customer's needs. The have expanded to providing internet service, television, wireless service, and landlines service. Verizon has been the first to address our nation's demand for bundling services to save money and to simplify lives. There are many factors that influence how Verizon handles the demands of customers.Being that they are the nation's leading wireless provider, the will also require a lot of support to keep customers happy. No matter what kind of service, Verizon offers customer support via phone, internet, and house calls. Customer support is available to all typ es of customers, residential, small business, medium genuineness, or even for enterprise & government sized accounts. The size of the organization indicates that there will always be unsatisfied customers, and in recent news many of these customers have banded together to file a lawsuit against Verizon for the monthly data plans being charged when services winner down. 0 take Acton Ana TIC ten customer service approver to Verizon customers, the organization has stated that they are in the process of De-automating their telephone systems so that customers can get to a live person more easily. As a highly publicized issue, this external factor has demanded that Verizon revamp the ay they handle customer service over the phone. Globalization Verizon's name is not only a household name in the United States. The organization has over 300 offices in 75 countries across 6 continents of the world. There are many reasons that Verizon has chosen to take business across seas.The most obvious i nfluence would be an internal desire to expand and prosper as a business. The second factor that leads them to globalization is the external force of growth in need for international communication. As technology and trade evolves, the need for efficient international communication has and will continue to grow significantly. Technology influences the globalization need by the way it changes the kinds of services traded. No longer are we only exporting and importing goods from countries, with the aid of technology we are seeing an increase in service trading.India has been the leading example of the need for organizations to communicate overseas. With the increase in out sourcing work to countries overseas, American countries need to communicate in order for the services to be unison. Although there has been a lot of debate over the quality of service provided by other countries, with the aid of Verizon this cultural hurdle can be nonexistent. Conclusion Although it is true that the organization's mission, reconstruction, competition, the economy, fiscal policies, customers, and globalization will always influence how Verizon continues to develop, their original mission's intentions.

Freedom of Pakistan and India

The Freedom of Pakistan and India Plan of the Investigation: In this essay, I chose to further investigate the freedom of Pakistan and India. On August 14, 1947, there was the birth of the new Islamic Republic of Pakistan. The very next day India had won its freedom from colonial rule lasting three hundred fifty years. The partition of India, following World War II, is the most tragic political event to affect India in its history. The partition divided Hindus and Muslims, who had lived together for nearly three hundred fifty years. It led to endless boundary disputes, three wars between the two neighbors, a nuclear powered arms race, and state-sponsored terrorism. Summary of Evidence: The freedom movements started when the Englishman Allan Hume helped a group of Indians start the Indian National Congress in 1885, which didn’t compete with British power. In the early 1900s, Bal Gangadhar Tilak brought a new faction within it, whose aim was independence. The Indian National Congress also had socialist impacts. In 1906, a big split occurred and the few Muslim that’s were in the Indian National Congress left, and a group called the Muslim League was formed. There are three main reasons that the Muslim nationalist movement emerged later than the Hindu movement. The first one is because the Muslims had their own religious schools and did not care about western thought as much as they should have. This was a problem because it was an important characteristic of the leaders of the revolutionaries. Secondly, the Muslims in the Indian National League were decreasing due to the increase in Hindu nationalism. Thirdly, the â€Å"big bang† was a dispute that occurred 1905-1911 in Bengal. In 1905, the British redrew the borders, giving the Muslims a majority of the districts. This upset the Hindus and in 1911, this decision was reversed. In 1906, as a result, there were two parties working for independence: the Indian National Congress and the Muslim League. In 1915, Mohandas Gandhi arrived in India. Gandhi obtained a degree in law with experience in nonviolent protests. Gandhi had the qualities to find peace with the Hindus for a greater cause, which was independence. He was well qualified. In his work, he actually caused pressure, causing the British Parliament to pass the Government of India Act. The act gave Indians the chance to have a law-making group, but the British Viceroy had the power to veto and the British were still the supreme rulers of India. The Hindus and Muslims were not satisfies with this act. The elected Indian legislature was formed by popularity. The Muslims had little representation, which upset them that the Hindu had more power over them. Gandhi tried to make peace, but in the elected congress there was no room for Muslims. The Hindus in the congress made it so the Muslims had limited rights. This upset the Muslims tremendously and was the final break between Hindus and Muslims. Evaluation of Sources: There are three main reasons for the partition of India. The first is that the British used the â€Å"divide and conquer† principle to rule India and had to instead use the â€Å"divide and relinquish† demands of Muslims. Secondly, the British thought that there were more people in the Muslim League pushing for Pakistan than there really were. They also didn’t understand why the Muslims were in every village and couldn’t move to Pakistan. Analysis: In India, many nationalistic movements had started and nationalism had grown tremendously. For example, the British made advances in transportation and communication. The British did not care about the customs of the people of India, which caused a distance between the ruler and the people. Therefore, the Indian National Congress was trying to get Britain to Quit India. The Muslim League came up with the idea for the British to divide up the land and then quit. The British implanted on this idea, but were also fearful of the potential threat that the Muslims. They had previously ruled the subcontinent for over 300 years under the Mughal Empire, so the British didn’t wanted hostility amongst them. They decided to separate the Muslims in India. In order to do so, the British helped establish the M. A. O. College at Aligarh and supported the All-India Muslim Conference, which were institutions that leaders of the Muslim League and Pakistan ideology came from and were placed on a separate electorate. The Muslims and the Hindus of India had religious conflicts amongst one another. The people that were rooted from India felt that the nature of Islam called for a communal Muslim society because that is all that they know. This idea made it hard for Muslims to accept change and refused to learn English or associate with the British especially because the Hindus were in high ranked positions in the government. The Muslims felt like the British favored Hindus. The Hindus resent the Muslims because of their formal rule. They wanted to make Hindi the national language, rather than Urdu. The Hindus and Muslims merely just fought for power. The Muslim League was further convinced by the Congress that it was impossible to live in an undivided India due to religious issues. For example, the â€Å"Bande Matram† was the national anthem that was forced to be sung in the schools, which expressed anti-Muslim sentiments. Conclusion: After years of oppression, at midnight on August 14, 1947, India was deemed an independent nation. Jawaharlal Nehru ruled as the first Prime Minister of the newly emancipated country. Gandhi was opposed to India being divided. In response, he spent the day in Calcutta fasting and praying. Muslims in the northern region of India were absorbed into Pakistan, and riots ensued. Hindus, Muslims, and Sikhs found themselves at war with each other, and Kashmir and the surrounding area became a callous that greatly contributed to the First Indo- Pakistani War, lasting for two years, from 1947 to 1949. India and Pakistan were both granted full self-rule, with the King- Emperor being crowned Head of State of both countries. The Governor General served a King-Emperor’s representative, and in 1948, Chakravarti Rajgopalachi ensued Mountbatten. Mohammed Ali Jinnah stepped up as Pakistan’s Governor General, and Liaquat Ali Khan became Prime Minister. Sources and Word Limit: Hasan, Mushirul (2001), India's Partition: Process, Strategy and Mobilization, New Delhi: Oxford University Press, 444 pages Kamat, Vikas. â€Å"The Partition of India. † Kamat's Potpourri — The History, Mystery, and Diversity of India. N. p. , n. d. Web. 8 Feb. 2010. . Provincial, and Central Governments. â€Å"Pakistan, or, The Partition of India, by Dr. B. R. Ambedkar. † Columbia University in the City of New York. N. p. , n. d. Web. 8 Feb. 2010. . Wolpert, Stanley. 2006. Shameful Flight: The Last Years of the British Empire in India. Oxford and New York: Oxford University Press. 272 pages. Words: 1,283

Emerging Trends Essay

Communications technology is progressing at light-speed, seemingly shrinking our world, as we can now communicate and conduct business in real time around the globe. Through innovations such as high-speed modem technology, businesses and people can share new ideas with friends and colleagues from the farthest lands. As more people and businesses strive to globalize, existing communication technologies are overloading, as they have approached the limitations of today’s available hardware. To gain higher speed access to the available information over the Internet, there are many factors one must research, as they ultimately work together. These factors include hardware, choosing an Internet Service Provider (ISP), as well as a modem, which will be used to send and receive the data via the Internet. The intent of this document is to review the latest high-speed technologies for improving information access using the Internet. By understanding these new technologies, one can make a more informed decision when choosing their hardware and ISP. Choosing Hardware for Individual Needs: Computer Choices To gain faster Internet access requires choosing a faster computer that best suits one’s needs. In determining the type of computer to purchase, one should first determine the application in which it will be used most. Applications such as word processing, computer games, and Internet access, all require various hardware and operating systems. Today, there are three main choices for computers, which include laptops, PCs, and hand-held devices. â€Å"Until recently, we only needed to decide on the type and speed of the processor that we wanted in our new computer, since most of the Intel Pentium based computers had a data bus with a maximum speed of 66 MHz† (PC World, 2000, July, p. 33). â€Å"With the release of the new Intel 100 MHz bus architecture, this has changed, as the new line of Pentium II and Pentium III processors use this new bus instead of the older 66 MHz bus† (PC World, 2000, July, p. 33). Needless to say, a PC equipped with this much power will su rely increase the communication speed between the processor and components in the computer. The main advantage of a notebook computer, versus a desktop, is the size and portability. Due to their smaller size, notebooks are the computer of choice for people that have limited space in their office or home. â€Å"A typical notebook computer will contain either an Intel Celeron, Pentium III, or AMD K6 processor, which all range in speed, while the more common speeds vary from 600 MHz to 850 MHz† (PC World, 2000, July, p. 37). The price of a standard notebook computer typically ranges between $1200 to $1900. Introduced in 1996, handheld computers, also known as Palm Pilots and Personal Digital Assistants (PDAs), have been gaining in popularity. These devices are portable and are no larger than a palm-size calculator. One of the most popular models on the market today is the Visor, offered in three models, ranging from $149 to $249 (Businessweek Online website, November 15, 1999, p. 192). While the speed of a handheld computer may vary, according to one source, the Palm Vx model runs slightly faster than other handhelds. â€Å"It runs with a 20mhz processor versus the 16mhz found in other models† (Palmgear website, 2000). Most palms come with standard applications like an address book, calculator, and a date book. Newer palms will also allow the user e-mail capabilities, using a memo pad similar to the Windows notepad. Since Internet access is now available as an option for handheld computers, they are a viable choice for consumers. Choosing an Internet Service Provider (ISP) Next, one needs to decide on an Internet Service Provider (ISP), and whether it is for personal or business use. Today, many companies offer free Internet Service to consumers and businesses. Broadband Digital Group (BDD) offers free dial up service at no additional cost, and is available nationwide. Another free ISP is Bluelight.com, which allows customers to shop online and receive various discounts on items purchased with Kmart. Free ISPs are economical and provide many of the services of fee based ISPs, such as sending and receiving email, web surfing, and online shopping.   Although some people find free ISPs to be economical, there are some disadvantages. Free ISPs represent less than 13 percent of the market, and are used as an alternate means to connect online (Fusco, 1999, pars. 4-6). With this, the customer is provided with Internet access, but not the quality service that is provided by most fee-based ISPs. In some cases, free ISPs do not provide consumers with high-spee d delivery, which results in slower connection speeds. According to a recent report by Patricia Fusco, fee-based Internet access service providers are among the elite and provide high quality, high speed, and wireless services. The top rated ISPs are, AT&T WorldNet, EarthLink, Inc., MSN, America Online, CompuServe, and Prodigy. All of these services can provide consumers with high-speed service, good customer service, and technical support (Fusco, 2000a, pars. 2-10). There are, however, some disadvantages with fee-based ISPs, as the monthly billing fees can range from $7.00-$40.00 per month. In addition, providers such as AOL, Prodigy, MSN, and CompuServe have monthly billing plans that must be applied to a customer’s major credit card or telephone bill. Payment by check is also an option, however, your ISP provider applies a surcharge. Fee based ISPs benefit people and companies who have a need for high capacity, high-speed, and a broad range of features. Providers like AT &T and MSN offer wireless service plans, so consumers have the option of accessing the Internet through their laptops or personal PDAs (Fusco, 2000b, pars. 4-6). In determining which ISP is best, one should consider cost, speed, availability, and technical support. The content of the ISP’s website, personal services, and customer satisfaction should also be considered. Choosing a High-Speed Modem Technology: Cable vs. DSL Of course, there is much more to achieving high-performance Internet access than just choosing a fast computer and an Internet Service Provider, as one will also need a connection capable of handling all of this bandwidth. Recently, there are new emerging technologies that will allow you to access information over the Internet at blinding speeds. Today, one can choose between new high-speed subscriber lines, such as Digital Subscriber Line (DSL) or Cable Modem, which enables one to access information over 10 times faster than the 56K modem. To utilize DSL will require a DSL-capable modem, which connects to the phone lines already present in the home. Installing DSL is a bit tricky. Although there are installation kits available, it is easier to have the phone company install the service, since installation requires a few components needed for avoiding interference while using the modem and telephone at the same time. The cost of installing DSL runs between $50-$100, while the monthly service fee averages about $80 per month, and includes an ISP (PC World, 2000, May, p. 106). DSL is not yet offered in all areas, however, a recent survey from The Yankee Group estimates that 21% of US households will have access to DSL shortly (PC World, 2000, May, p. 104). Cable Modem is another high-speed solution for accessing the Internet. Cable Modem technology offers similar performance as DSL, yet the technology is a bit different, as it utilizes the existing television cable in the home. Like DSL, Cable Modem access will require a special modem and can be installed by the consumer, or by a local cable company. Expect to pay approximately $100 for the installation, while the monthly service fee averages about $50 per month (PC World, 2000, May, p. 106). The Yankee Group estimates that 41% of US households will have access to Cable Modem technology, which is limited to those households already equipped with cable television services (PC World, 2000, May, p. 104). 87% of Cable Modem users and 86% of DSL users are satisfied with the performance, according to a PC World survey (PC World, 2000, May, p. 116). While the monthly service fees are more for DSL, as compared to Cable Modem, the fees are expected to normalize as the technology becomes more widespread. In reviewing these high-speed technologies, the choice begins to shift from choosing between DSL and Cable Modem, to choosing between either of these two, along with any of the new computers. Summary This study reveals that to gain high speed connectivity, any of the new computer hardware choices are adequate. The key to high speed information access is now governed by your connection, where this situation was revered just a few short years ago. DSL and Cable Modem both offer substantial performance improvements over conventional 56K Internet access. Either choice enables high-speed Internet access, which will be a vital component as more and more on-line information begins to congest the information pipeline. To truly gain high speed Internet access, one must incorporate either of these new modem technologies, along with their choice of hardware, which should be based on one’s individual needs. References Businessweek Online website. (November 15, 2000) The Palm is Mightier†¦, [Available] Retrieved March 31, 2001, from the World Wide Web: www.businessweek.com Fusco, P. (1999, December). Jupiter: Free ISPs won’t replace dial-up access (16 paragraphs). InternetNews – ISP News Archives, [Available] Retrieved March 31, 2001, from the World Wide Web: www.internetnews.com Fusco, P. (2000a, May). AT &T Wireless Debuts Free Wireless Internet (15 paragraphs) InternetNews – ISP News Archives, [Available] Retrieved March 31, 2001, from the World Wide Web: http://www.internet.news.com/isp-news/article/0,,8_356751,00.html Fusco, P. (2000b, September). J.D. Powers Ranks Big Six ISPs (19 paragraphs). InternetNews – ISP News Archives, [Available] Retrieved March 31, 2001, from the World Wide Web: http://www.internetnews.com/isp-news/article/0,,8_460761,00.html Overton, R & Goavec, P. (May 2000). PC World – Broadband or Bust, Volume 18, Number 5. 102-108, 112, 116 Palmgear website. (Copyright 2000, internet.com Corp), [Available] Retrieved March 31, 2001, from the World Wide Web: www.palmblvd.com

Services Management Assignment Example | Topics and Well Written Essays - 2000 words

Services Management - Assignment Example An analysis and critic view of the service delivery of the organization in alignment with the service delivery or service excellence literature will also be portrayed. At the end an evaluation of what is being learnt from the organization will serve as a conclusion. In accordance with the requirements of the paper the service and the service organization undertaken for this study is a banking service organization in India called "ICICI Bank" Here is a brief outlook on the organization. "ICICI Bank is India's second-largest bank with total assets of Rs. 3,744.10 billion (US$ 77 billion) at December 31, 2008 and profit after tax Rs. 30.14 billion for the nine months ended December 31, 2008. The Bank has a network of 1,420 branches and about 4,644 ATMs in India and presence in 18 countries. ICICI Bank offers a wide range of banking products and financial services to corporate and retail customers through a variety of delivery channels and through its specialised subsidiaries and affiliates in the areas of investment banking, life and non-life insurance, venture capital and asset management. The Bank currently has subsidiaries in the United Kingdom, Russia and Canada, branches in United States, Singapore, Bahrain, Hong Kong, Sri Lanka, Qatar and Dubai International Finance Centre and representative offices in United Arab Emirates, China, South Africa, Bangladesh, Thailand, Malaysia and Indonesia. Our UK subsidiary has established branches in Belgium and Germany." (ICI CI bank online) History of ICICI bank "ICICI Bank was originally promoted in 1994 by ICICI Limited, an Indian financial institution, and was its wholly-owned subsidiary. ICICI's shareholding in ICICI Bank was reduced to 46% through a public offering of shares in India in fiscal 1998, an equity offering in the form of ADRs listed on the NYSE in fiscal 2000, ICICI Bank's acquisition of Bank of Madura Limited in an all-stock amalgamation in fiscal 2001, and secondary market sales by ICICI to institutional investors in fiscal 2001 and fiscal 2002. ICICI was formed in 1955 at the initiative of the World Bank, the Government of India and representatives of Indian industry. The principal objective was to create a development financial institution for providing medium-term and long-term project financing to Indian businesses. In the 1990s, ICICI transformed its business from a development financial institution offering only project finance to a diversified financial services group offering a wide variety of products and services , both directly and through a number of subsidiaries and affiliates like ICICI Bank. In 1999, ICICI become the first Indian company and the first bank or financial institution from non-Japan Asia to be listed on the NYSE." (ICICI bank Online) Literature - Service delivery /Service excellence : Service delivery and excellence in service is the key word for organizations involved in the service industry. In the book of "Service operations Management: Improving service delivery" Service delivery is explained as "understanding the needs of our customers, managing the process that delivers services, ensuring our objectives are met, while also paying attention to the continual improvement of our services." The book also defines service from the customer's perspective by saying, "service is the combinations of the customers' experience and their perception of the outcome of the

Arab Spring in some states in the Middle East, but why not IRAQ Essay

Arab Spring in some states in the Middle East, but why not IRAQ - Essay Example Other countries such as Syria are also experiencing huge turmoil which could result in the end of its government. But amidst of all of this Iraq has remained relatively quiet. There are various reasons attributed to the absence of mass protests in Iraq. Some experts believe that Iraq is too diverse. It comprises of many minorities and small groups which find it hard to come together and fight against the present government. Cain highlights the problem on the background of Iraqi demographics, â€Å"DEMOGRAPHICALLY, IRAQ IS UNIQUE AMONG MIDDLE EASTERN COUNTRIES AND THE PROFOUND DIFFERENCES WOULD SEEMINGLY MAKE IT EVEN MORE SUSCEPTIBLE TO A POPULAR UPRISING. IRAQ ALSO CONTAINS A VAST SEMI-AUTONOMOUS REGION IN THE NORTH THAT IS COMPLETELY CONTROLLED BY THE ETHNIC KURDS AND THE KURDISTAN REGIONAL GOVERNMENT.† At the same time there are others who believe that Arab Spring has touched Iraqi people. The magnitude of demonstrations may have been unthreatening to the U.S. backed Iraqi regime but there were demonstrations none the less. As IslamoPedia, an online platform for exchange of Islamic thought puts it, â€Å"THROUGHOUT 2011, THOUSANDS OF IRAQIS JOINED TOGETHER IN RARE DISPLAYS OF CROSS-SECTARIAN HARMONY ACROSS THE COUNTRY, WITH SHI’ITES, SUNNIS, AND KURDISH CITIZENS DEMANDING IMPROVED LIVING CONDITIONS AND PUBLIC SERVICES, AN END TO CORRUPTION, UNEMPLOYMENT AND INFLATED SALARIES FOR POLITICIANS, ALONG WITH AN END TO FOREIGN OCCUPATION.† The efficacy of such protests is doubted by Iraq Revolt, an independent blog site by Iraqi nationals, which says that â€Å"IT IS DEBATABLE WHETHER OR NOT IRAQ IS EXPERIENCING ITS OWN ‘ARAB SPRING’. IT IS CLEAR THAT MANY OF THE IDEALS ADVOCATED IN THE ARAB SPRING ARE BEING PROTESTED FOR IN IRAQ, IT IS QUESTIONABLE AS TO WHETHER IT WILL RESULT IN A REVOLUTION LIKE IN THE OTHER MENA STATES.† The question that arises is that why the protests haven’t been so

Debate Essay Example | Topics and Well Written Essays - 250 words - 9

Debate - Essay Example The trend continued with the establishment of the sensitive security information category. Such information is deemed secretive and authorized individuals are required to access it. In case, any common person accesses it, the individual is deemed to be a felony (Ginsberg et al., 2015). Although, such moves are contradictory to the freedom of information Act; they are deemed to be an exemption from the provisions because of the volatile situation in the security area. According to Kean (2005), the government mercenaries are always working behind the scenes, hence compromising even privacy rights of its citizenry. This trend is a wrong ad must be condemned because it indicates a lack of professionalism of the federal bureau of investigation and related agencies. According to Ginsberg et al. (2015), government secrecy is also subject to bureaucracy on the part of the government. The practice has led to various forms of harassment on account of security screening and vigilance. The sharing of information between the public and the government is also compromised due to the limitation of information publicly (Ginsberg et al., 2015). The trend is also manifest in the number of officers employed on an annual basis to classify information as sensitive and otherwise. This situation notwithstanding, the public is usually notified of an exemption to the freedom of information access to avoid public uproar and litigations (Ginsberg et al.,

SECURITY ISSUES IN RED HAT ENTERPRISE LINUX Dissertation

SECURITY ISSUES IN RED HAT ENTERPRISE LINUX - Dissertation Example The intention of this study is security as a key concern for enterprise Information technology (IT) managers with a regular apprehension to keep the systems properly updated and configured to prevent unwarranted exploitation from outsiders. OpenSCAP implements an open Source of Security Content Automation Protocol (SCAP) framework for creation of uniform approach for maintains secure systems. A lot people are paying a lot attention on security matters particularly in governments to ensure their systems are well guarded and are not exposed to uncalled for bugs and exploits. With OpenSCAP, the open source community is leveraging a number of different components from the security standards ecosystem to enable the framework. In order to avoid all sorts of attacks, this research indicates some security issues of the system and software configurations in the Red Hat Enterprise Linux (RHEL) such as OpenSCAP, Security Audit system and some OpenSCAP tools, which play a vital role in the Linux security domain. Grasping these skills not only can help the administrator defend from the potential security risk making the environment more secure but also can understand the concepts of security deeply promoting the development of computer security. The world of computer security has changed dramatically in the last few years, and one of the greatest challenges now facing CIOs and IT directors is the task of maintaining the security of their IT environments. The effects of a security breach can be catastrophic, including unplanned downtime and the resulting loss of service, a potentially significant financial impact, and the loss of sensitive and confidential information. This problem has been compounded by the proliferation of networked PCs and servers as well as the growing intelligence of malicious software that seeks to exploit and expand throughout the Internet infrastructure. Companies such as Red Hat are releasing new technologies and tools to address the needs of system administrators responsible for managing the security of large numbers of geographically dispersed systems. For example, technologies such as Position Independent Executables (PIE) and Exec Shield help protect against buffer overflows, a tactic frequently employed by attackers to infiltrate and compromise flawed software programs. Another technology, Security Enhanced Linux (SELInux) prevents users and applications from damaging an entire system by enforcing security policies at the kernel level (Farrell, 2003). On the tools front, Red Hat Network, a key part of Red Hat Enterprise Linux, provides system administrators a way to review information about security vulnerabilities and proactively apply relevant security measures and other updates to large numbers of Red Hat Enterprise Linux systems easily and efficiently. With recent technologies, applications can be shielded in environments which do not expose them to: Potential flaws that may be inherent in the application

Aviation and Climate Change Essay Example | Topics and Well Written Essays - 1000 words

Aviation and Climate Change - Essay Example Due to increase in number of fights, aircraft emissions can affect climate considerably. Carbon dioxide and water do so directly, others effects like production of ozone in the troposphere, alteration of methane life time, formation of contrails and modified cirrus cloudiness, are indirect causes. The emissions that can affect stratospheric ozone i.e. nitrogen oxides, particulates and water vapors, do so indirectly by modifying chemical balance in the stratosphere. Airports growth again is directly affect the climate because expansion or growth of airport need space and may destroy the ecological balance of the place in particular and have overall impact in general. Manchester airport, which accounts for almost 8.8% of UK civil air transport movement, generates proportion of the pollution from UK aircraft. It would translate into 88,000 tones of carbon from its civil air traffic alone (Manchester Green Party briefing on Emissions charging at Manchester airport, 2nd edition, December 2003). Assessment of Cost-benefit: The ground traffic stimulated by the airport results in emission increase. Manchester airport has experienced increase of almost double number of passengers in last 10 Years, this has increased the frequency of flight to, and form Manchester with the existing felicities at the airport but due to this congestion has increased. Due to increase in air traffic Manchester airport operator experienced, increase in its income considerably. Growth in the earnings of airport was due to more landing, parking charges etc. directly and customer inflow indirectly increases the earning. In comparison to other major airports in Europe, Manchester experience little growth in terms of numbers of runways. Due to congestion, cost of flying could not be quantified directly. Now it has been increased almost to double. It has been calculated that average direct cost to the airline of every minute that an aircraft was delayed is 21.80 pound/passenger in 2002. If we calculate co st of delays for Manchester airport where average delay is around 13.1minute with 175000 flights with 23.4pound/ minute, it costs 53 million pound (http://www.caa.co.uk/docs/80/airport_data/2002annual/Table_04_1_Air_Transport_Movements_2002.pdf .). This is direct cost of congestion. Congestion and delay costs the passengers heavily. This delay and congestion cost do not include the environmental cost incurred. However, there are also indirect costs of delays. Environmental/climate impacts: Congestion also has negative environmental impact as more and more planes are forced to burn more fuel for longer as they delayed on runways or circulating around airports, leading both to increased carbon emissions, additional aeronautical noise and lower air quality for local residents. Surface congestion around airports as both passengers and staff travel to or from the airport can have similar environmental impacts as well as economic costs. These costs to three other significant environmental impacts arising from air traffic i.e., aeronautical noise, local air quality and emission of greenhouse gases affecting climate change. One of the major area where air transportation affect, is the more use of aviation fuel. It consumes almost 13% of fossil fuels used in transportation. The amount of CO2 formed from the combusting of aircraft fuel is determined by the total amount of carbon in the fuel because CO2 is an

Role of a Student Nurse in Higher Education and Future Healthcare Essay

Role of a Student Nurse in Higher Education and Future Healthcare - Essay Example As the discussion declares  there is a need to change the nursing practice in the transformation of the health care system. Nurses find themselves in providing care to people from diverse cultures. In addition, technological advancements in the medical field present new treatment approaches.  From the report it is clear that  the current transformation of Health Care demands that nurses take up more roles and responsibilities in the society. For example, nurses are required to develop their leadership skills to advocate for improved services. Nurses are also required to collaborate with other medical practitioners in the provision of quality care. Currently, nurses have been engaged in many changes. For example in 2010, the NHS England engaged nurses and other practitioners in the development of a new approach to patient care. The collaboration involved 269 groups of nurses together with other practitioners, who provided recommendations on how to bring care closer to the people in the society according to NHS England. The NHS England has recommended several approaches to care to bridge the gap between cheap and affordable care in the society.  Nurses in their professional careers are required to be committed to their role in providing care and ensuring the well-being of patients. The value of competence requires professional nurses to be up to date with knowledge and understanding of the needs of the patients.

SCIE210 Unit 2IP Research Paper Example | Topics and Well Written Essays - 500 words

SCIE210 Unit 2IP - Research Paper Example Fact number two suggest that women may opt to delay having children, and the last fact is that they may even opt not to have children at all. All those facts will lead to low birth rates and low death rates because there will be an improvement in health care and nutrition (Kenkel, 2001). Economically, there will be an increment of old people depending on pension schemes for survival. In another definition, demographic transition refers to changes in high birth rates to low birth rates and change in high death rates to low death rates (Kenkel, 2001). In this stage, a society will experience high birth and death rates. Since the two rates are high, there will be a very slow growth in population. The population will belong to the young generation because many people born do not live long (Chesnais, 1992). In this stage, children are economically valued in the families because they reinforce high birth rates. The main economic activity that they contribute to is carrying water and firewood, caring for young ones below them, cooking, and working in fields. There are very few education opportunities hence; the cost of raising children is higher than the cost of feeding them (Chesnais, 1992). In this stage, a country enters an industrialization period, which facilitates a drop in the death rates rapidly. There are two factors attributed for the drop in death rates. The first factor is improved food production and improved health facilities and sanitation. The country turns into more efficient food production methods and better transportation and food distribution methods (Galor & Moay, 2002). At this stage, death due to starvation is eradicated and the population will be growing. Population growth is witnessed due to reduced death rates and stabilized birth rates. It is important to note that population does not grow due to increased fertility but due to reduction in death rates. Therefore, birth rate maintains its pace while more people continue to live

The Simpsons coursework Essay Example for Free

The Simpsons coursework Essay The Simpsons is an animated, American sitcom. It makes fun of the average American family and the American way of life. In the opening sequence we see twelve separate places. There is an aerial view from the clouds descending into a long shot of town along the road to the school: then a medium shot zooms into the classroom, then we cut to the nuclear plant where we first see Homer in a medium shot. There is a cut to the supermarket where Marge and Maggie are, then to the music room where Lisa is. We cut to Homer in his car driving, and see Bart on his skateboard in the street, as the angle of the car move around the car then follows Bart. We cut to Maggie imitating Marge as shes driving. All the family, one by one, finally get home then rush to the couch. The main difference between the opening and closing shots is that the family are in different places within the town but in the closing shot they are together, which, in my opinion is quite typical of a family since they each lead different lives but in the end they are one. Throughout the title sequence the music is firstly slow and heavenly then as we descend from the clouds as if we are gathering speed the music becomes lively, upbeat, jazzy and discordant like the family they argue but always come back together. It is also fast moving, just like the scenes-which are sometimes joined and flowing. Springfield is a small town where everyone knows everyone. It has everyday places that you need to live. It is a busy normal town with people walking along the street. We see Bart on his skateboard, Chief Wiggum shouting at Bart, Barney standing by and some children from Bart and Lisas school playing. In the title sequence we learn that Bart is the bad child and a daredevil because he was writing lines on the board and dodging people through the street. Lisa is an independent person because she was playing her saxophone differently from the class. Homer is careless and clumsy because he gets a radioactive crystal stuck in his clothes and throws it out his car window when he was driving. Marge likes to have a routine and Maggie is a quick learner because she was copying her mother when she was driving. The cartoon genre allows The Simpsons to break the rules because anyone who is from the past, present or future, dead or alive, real or imaginary can make an appearance i. e. Elvis, God and George Washington all have made guest appearances. The Simpsons will never get old i. e. Maggie is an eternal baby, Marge will never get grey hairs it will always be blue and Bart will always be 10 years old. As a family The Simpsons love each other and they have their own different personalities that they have to get along with although they may have. When a situation causes the family to look at themselves; they reflect on what has happened and sometimes learn from it and use it in their daily lives. We know they are a family (since everyone looks similar) because they go into the same house and though out the title sequence we follow one of family. Also the sitcom is about and named after the family. The colour uses in the sitcom are bright, vivid, and intense which will attract children of a young age or a short attention span. The speed also adds to the vibrant effect on the colour because we are cutting all the time so the colours are quick and stunning. In each episode the words, which Bart is writing changes and hints to what, that episode is about i. e. in an episode Bart, on the board, wrote the truth is out there and the family on jetpacks flew to the couch. That episode was about Bart and Homer claiming to see an alien that glowed, which turns out to be Mr. Burns, Homers boss, he was very sick and his medicine made him glow. When they all are rushing into the house, the way they get to the couch changes i. e. they have dived, danced, went to the wrong room, gone to the wrong show, ran, and flown on jetpacks. In the Homer Badman episode, the frame with Ashley Grant, feminist student shows the hypnotic effect of violent video games on young boys, since she used the game to bribed him to do what she asked. For the younger audience it is funny because Bart seems to be hypnotized and for the mature audience the humour is that a feminist would frown upon anything violent especially for young children. Also in this episode there are references to other films i. e. Homer was singing about living under the sea-The Little Mermaid, and Homer made a hand grenade, then threw it at the people chasing Marge and him-Die Hard. The title sequence appeals to different age groups because children do things that they think is funny but others think its silly and adults can also appreciate the humour in raising a young family. The Simpsons are very popular worldwide because it is funny and enjoyable for all ages. The first showing of The Simpsons was shown on 17th December 1989 it was a trial run of the series, which was very popular so the first episode was shown on 14th January 1990. Homer Badman was originally shown on 27th November 1994. In the first year on air The Simpsons over took the most popular situation comedy (The Cosby Show) capturing a regular audience of over 24 million each week and has achieved over 2 billion dollars of merchandise sales. Also The Simpsons was the first animated show to appear on prime time television since The Flintstones in the 1960s. In each episode there are over 250,000 frames and no matter how old you are, you can relate to it because it is based on, and named after, Matt Groenings own family. The family depict life in different aspects of real life and this in turn gives you a feeling of understanding and relativity to ones own life experiences, whilst having the added benefit of seeing the humour in the experiences one goes through in real life.

Process Design Matrix and Summary Essay Example for Free

Process Design Matrix and Summary Essay This process design matrix and executive summary will focus on Chapman Tool and Manufacturing and there performance measurement process. This executive summary is needed for Chapman Manufacturing due to their lack of process performance management that will include service approaches, that consist of production line, self-service, and personal attention approaches. This summary will also cover product approaches for their process performance measurements that consist of, batch assembly line and continuous flow approaches. This executive summary of process performance measurement will quantitatively tell Chapman Manufacturing something important about their products, services, and any of the processes that produce them. To conclude this summary, this tool will help Chapman Manufacturing understand, manage, and improve the company’s processes. To begin, the first service approach for Chapman’s process performance management consist of production line approach to improve the company’s performance efficiently and effectively. â€Å"Performance management means addressing any and all performance issues, meaning feedback for performance that is not up to par with procedure as well as praising employees for a job well done.† (Mayhew, R. 2013) Chapman starts with each employee receiving their performance file that includes their consistency, effectiveness, and efficiency for their progress for success and promotions. These performance measurements, that includes their 10-15 machines of production line approaches. There will be a selection on running their machine to run perfect parts or to make changes but this way they have it recorded and make the changes as needed. The second service approach for the process performance measurement plan consists of, a self-service approach. Chapman Tool and Manufacturing will be implementing EMC2 consulting services with HR and then management to assure that every activity provides meaningful value. (EMC2, 2013). At Chapman there are a lot  of fragmented processes that can be avoided so financially and human resources are not drained and diminish any chances of keeping up with changing markets and customer demand. There are self-service approaches in this change for the process performance management plan for every employee (machine operators etc†¦) that include, â€Å"Streamline processes to expedite new product introduction, Standardize, integrate, and improve existing processes, Design and implement new processes, Simulate and model processes for operators, Define process metric and performance management strategies.†(EMC2 , 2013). The third service approaches for the process performance management plan consist of personal attention approach. Chapman should implement the personal attention approach that will include specific competencies that will best be determined through a job analysis process. Competencies that will be included in this personal attention job analysis approach will consist of, Accountability and dependability Adaptability and flexibility Advocating causes Analysis and reasoning Attention to detail Business alignment Coaching and mentoring Creative and innovative thinking Customer focus Decision making and judgment All of these competency functions are to determine each employee’s performance file and documented with constructive criticism and praise to becoming successful with and for the company. Chapman also needs to implement product approaches for their process performance management plan. The first product approach that will be implemented is known as a batch approach. A batch approach can be known as a lean manufacturing process also and focus’s on demand-based flow manufacturing. â€Å"This type of production setting, inventory is pulled through each production center when it is  needed to meet production orders; this will deliver the benefits of, Decreased cycle time Less inventory Increased productivity Increased capital equipment utilization.† (Wiki, 2013) The second product approach for Chapman’s process performance management plans consist of, assembly line approach. By Chapman implementing the assembly line approach, will keep all operators on the same page and get product sent to the next department for the assembly of the product being put together. Then finally are sent to the final department to be inspected and shipped. Having different departments for the processes of the product, and having an assembly line approach for each step will keep the company’s organization on line for their performance management. The third product approach for Chapman’s process performance management plans consist of, a continuous flow approach. The continuous flow approach are implemented through the â€Å"lean building blocks†, like, â€Å"Five S: Aims to bring orderliness, tidiness , and cleanliness to operations , Visual controls: All tooling parts and other production activities are kept clearly in view to help eve ryone understand the status of the process at a glance. Poka-Yoke: Mistake Proofing. Process designs can be modified to make it nearly impossible for mistakes, spills, leaks, and other process upsets to occur. By implementing these techniques and others will uphold the continuous flow approach for the process performance management plan for Chapman Manufacturing. In conclusion, the process design matrix and executive summary was focused on Chapman Tool and Manufacturing and what their performance measurement process entailed. The executive summary was needed for Chapman Manufacturing due to their lack of process performance management that was included in these service approaches that consisted of production line, self-service, and personal attention approaches. The summary also covered product approaches for their process performance measurements that consisted of, batch, assembly line, and continuous flow approaches. The executive summary that entailed their process performance measurements will quantitatively tell Chapman Manufacturing something important about their products, services, and any of the processes that  produced them. To conclude this summary, this tool will ensure that Chapman Manufacturing understands, manages, and improves the company’s processes for their future business and profits. References EMC2, (2013). Business process management. Retrieved on January 2, 2013 from http://www.emc.com/consulting-services/application/expertise/business-process-management-bpm.htm Lean Manufacturing (2013). Wikipedia. Retrieved on January 2, 2013 from http://en.wikipedia.org/wiki/Lean_manufacturing Mayhew, R. (2013). Development of an employee performance plan. Retrieved on January 3, 2013 from http://smallbusiness.chron.com/development-employee-performance-plan-1942.html

Public Health Past And Present Health And Social Care Essay

Public Health Past And Present Health And Social Care Essay Health is a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity (WHO, 2006). The concept of health is the main theme and focus of public health. The concept of Public health was defined by the American public health leader, Charles-Edward A. Winslow, in 1920 as, the science and art of preventing disease, prolonging life, and promoting physical health and efficiency through organized community efforts for the sanitation of the environment, the control of community infections, the education of the individual in principles of personal hygiene, the organization of medical and nursing service for the early diagnosis and preventive treatment of disease, and the development of the social machinery which will ensure to every individual in the community a standard of living adequate for the maintenance of health (Winslow, 1926) and also adopted as the definition by The Acheson Committee on Public Health in England, which reported in 198 8, at their first meeting which is cited in the Health Second Report of the House of Common (2001). What does this definition tell us about the meaning of public health? It means it is the organised efforts of society, implying some collective responsibility for health and prevention (Beaglehole et al, 2004) Public health is an aspect of health services concerned with threats to the overall health of a community based on population health analysis. It generally includes surveillance and control of infectious disease and promotion of healthy behaviours among members of the community in contrast to medicine which is focus on the overall health of the individual. Public health deals with the population while medicine deals with the individual. The population can be as small as of people who lives in one community or as large as all the people of several continents in the case of a pandemic. As public health become popular to this modern time tensions sometimes arise between medicine and public health. Each discipline has its distinct priorities. Medicine aims at cures for individual diseases and primarily dealing with individuals while public health emphasizes the prevention of disease of the population and health promotion. The Health Second Report of the House of Commons (House of Commons, 2001) mentioned in the paper that Public health, according to the Proprietary Association of Great Britain, is not a term understood by the majority of the public and one of the difficulties with the term public health is that it means different things to different people. In addition according to the report that Public Health can span everything from a medical specialty to a specialty which is an awful lot broader than medicine and to almost a philosophy and Public health can be variously defined so as to cover trends of disease in a population, the provision of preventive and health improving care, or a range of health-impacting factors including or excluding the NHS. According to Brieger (1999) and Kumar (2007) the history of public health has been a flourishing field in the last three decades. Yet despite a spate of excellent monographs about various epidemic diseases and many good collections about health and disease in Africa, Asia, the Middle East, Latin America, as well as Europe and North America, the most recent textbook on the history of public health is four decade old. George Rosens venerable, A History of Public Health, was first published in 1958. In many ways, public health is largely a modern concept, although it has roots in antiquity and public health impact and influence has waxed and waned over the past 150 years (House of Commons, 2001). Tosh (1984) cited by Womack and Scally (2004) in his book The Pursuit of history wrote, To know about the past is to know that things have not always been as they are now, and by implication that they need not remain the same in the future and according to Carr (1987) cited by Womack and Scally (2004), history offers a dual function, to enable men and women to understand society of the past and to increase the mastery over the society of the present. The importance of the history, knowledge and understanding of the past public health and how it evolved, its success and failures, its highs and lows enable us to increase our understanding of the present. In this paper public health history is revisited to see how past shaped the public health today. Past and Present Throughout the human history, community attempts to prevent and limit the spread of diseases which are the main early historical ideas of public health. Evidence of the existence of the idea of public health can be found in the earliest evidence of communal living and existence of diseases similar to what we have today. Evidences of activities connected with community health were well documented by Rosen et al (1993) in the book A History of Public Health these community health activities have been found in the very earliest civilizations dated as early as four thousand years ago in India, where evidence showed that these early Indian cities where consciously planned in which the bathrooms and drains are common in excavated buildings, the streets were broad, paved and drained by covered sewers. In Middle Kingdom (2100-1700 BC) archaeologist discovered the ruin city of Kahun in Egypt and there is an evidence that care was taken to drain off water by means of masonry gutter in the cent re of the street. During the pre-Christian era, about two thousand years ago, the problem of procuring drinking water supply for larger communities had already been solved. In the book it was mentioned about the impressive engineering works of the Incas. They established well-drained cities that were adequately supplied with water, thus providing a good basis for the health of the community. In Greece, for example, the Cretan-Mycenean culture had large conduits, and in the Palaces, such as that of Konosos on Crete, which dates from the second pre-Christian millennium, there were not only magnificent bathing facilities but also water flushing arrangements for the toilets (Rosen et al, 1993). Kumar (2007) mentioned that Romans believe that ill health could be associated with, amongst other things, bad air, bad water, swamps, sewage, debris and lack of personal cleanliness. In some places, Rome included, it is impossible to avoid all of these unless something is physically done to alte r the environment. The Romans resolved these problems by the provision of clean water through aqueducts, removing the bulk of sewage through the building of sewers and development of a system of public toilets throughout their towns and citys and personal hygiene was encouraged through the building of large public baths. These historical evidences of public health community activities are the source of early information and strategies on the importance of housing and sanitation in public health. Rosen et al, (1993) discussed the concept of cleanliness and it was very evidence during early days. Cleanliness and personal hygiene are to be found among present-days primitive and very unquestionably practiced by pre-historic and early historic men. Primitive people dispose generally their excretions in sanitary way, although their reasons are quite different to the reasons of todays generation. During early days these practices are connected to religious practices. People kept clean to be pure and clean in the eyes of the gods and not for hygienic reason. An interesting example cited by Rosen et al (1993) was the connection between the cleanliness and religion in the Inca feast, Citua. Every year, in September, at the beginning of rainy season which is associated with diseases, the people led by the Inca carried out health ceremony. In addition to prayer all homes were thoroughly cleaned. Religious traditions against eating pork among Hebrews and Muslims reflect the special hazar ds of eating those foods when inadequately preserved or prepared. As often happens in public health, even without an understanding of the underlying etiology, effective preventive measures can be taken. Successes in prevention reinforce the concept that disease can be prevented through human action other than prayers and sacrifices to the gods, which in turn encourages additional attempts at prevention. Other ancient practices which created a great impact in health of our modern time such as those that can be found among the Indian cultures with a well-developed system of health-related practices called Ayurveda (the science of living) that extensively used herbs and yoga (body and breathing exercises) based on three broad parameters, loosely translated as air (vata), bile (pita) and phelgm (kapha). While the exact date of the origins of these practices are unknown, it is variously estimated to have been in existence since before 1000 B.C. It is generally believed that invasive medicines were discouraged within Ayurveda, though some translations of older works suggest that occasional operations were performed on exceptional cases. Ancient Indian cultures also cultivated systems of healing such as Pranic healing (Mishra, 2003). The Ancient Greek would not have been too unfamiliar with some of the health and fitness regimes that are used by people today. The word Regimen was used by t he Greeks to describe peoples lifestyles: from which can be derived the word regimented (as in organised). The Greek philosophy of Regimen covered what people ate, drank, the types and amount of exercise that they took and how much sleep they had. These ideas were very thorough: it demonstrates that the Greeks knew that lifestyle could affect the quality of life, as evidenced by their development and championing of the Olympics. Such is the quality of the remaining evidence that we can even see that doctors advice differed for those who were rich: and could therefore afford to spend time and money on relaxing, and those who worked or were poorer: and therefore couldnt maintain as healthy a lifestyle as possible many of which are still visible in places today (Kumar, 2007). In China, although it is not traditionally known as public health, but health practices were visible already during the early days. The earliest known work on Chinese herbs appeared as early as 100 B.C.E., the acu puncture and moxibution, both of which have been practiced as therapeutic techniques in China for more than 2,000 years, the Qi Gong, as an art of healing and health preservation, dates back to the Tang Yao period, some twenty centuries B.C.E. which is about dancing and body movements, and various ways of breathing, exhalation, and exclamation were recognized as ways to read-just some functions of the human body and treat diseases (Koenig et al, 2001). Public health problems are caused majority by diseases which are transmitted from one person to another. One example is tuberculosis. Tuberculosis was a very common problem all over the world until a good understanding of the disease helped scientists and doctors invent treatments. Less than 100 years ago, many famous people died from the disease, including artists, writers, philosophers, scientists, politicians and even some kings and queens. The history of diseases can be traced as early as the human existence. Paleopathology, the study of ancient diseases using fossils and other artifacts, reveals that early Homo sapiens, who were hunter-gatherers, suffered from essentially the same diseases that afflict people today for example, schistosomiasis, prevalent in Egypt today, has been found in Kidneys 3000 years old (Kloss and David, 2002) and skeletal remains show prehistoric humans (7000 BC) had TB (Hershkovitz et al, 2008), and tubercular decay has been found in the spines of mummi es from 3000-2400 BC (Zink et al, 2003). According to Rosen et al, (1993) the first clear accounts of acute communicable diseases occur in the literature of classical Greece such as the writings of Thucydides and Hippocrates. In Hippocratic collection several known diseases of today were already mentioned such as malarial fevers, colds, pneumonia, inflammation of the eyes, suggestive statements of the presence of cases of diphtheria (although not known yet as diphtheria) and other unknown diseases in those time. In the period of the Western European history from the fall of the West Roman Empire in the 5th to the 15th century is known as the middle ages (Dark ages) religion takes a firm hold on science (Koenig et al, 2001). During this time, the Western Europe experienced a period of social and political disintegration. Large cities disappeared, replaced by small villages surrounding the castles of feudal chiefs. The only unifying force was Christianity, and it was in the monasteries that the learning and culture of the Greco-Roman world was preserved. Furthermore, in many of these institutions, piped water supplies, sanitary sewers, privies, bathing facilities, and heating and ventilation were provided. In addition, some monasteries constructed hospices to shelter travellers and sick persons, though the medical care provided in them was primitive at best. In Eastern Europe and Asia Minor, however, feudalism did not exist, and medicine advanced and became centred in major secular hospitals e stablished in Byzantium, Baghdad, and Cairo (Conrad, 2006). The two most popular epidemics during the Middle Ages were Black Death and leprosy. Due to the specific environmental circumstances of medieval Europe and the religion of medieval people, these two epidemics had great social repercussions In early 1347, a fearful epidemic of bubonic plague broke out in Constantinople. From then on, this great plague would reach Europe and kill approximately from one-fourth to nine-tenths of the human population in the affected areas. Black Death or Plague from a modern medical point of view, it is a pneumonic type of an infection, highly contagious, which could be transmitted via inhalation, ingestion, or even slight abrasion of skin. Usually, lung lesions occur and death may occur from heart failure. The walls of blood vessels are attacked frequently causing haemorrhages and acute blood poisoning. It is fatal in almost all cases (Byrne, 2004). While leprosy spread in every civilized country in Europe during the Middle Ages. The Order of Lazarus was founded, and Lazarettoes built in a great numbers: the work and the purpose of the Order is to segregate and govern the afflicted and dangerous part of humanity. The disease was controlled through segregation and isolation of those who were afflicted of the disease (Rawcliffe, 2006), which is a very important concept of quarantine and isolation for the modern public health. Successes in prevention reinforce the concept that disease can be prevented through human action other than prayers and sacrifices to the gods, which in turn encourages additional attempts at prevention. By the 1600s, the practices of isolation and quarantine had begun to be employed to prevent the spread of certain diseases; by the 1800s these practices had become common in the American colonies. Methods of smallpox inoculation also began to be used and apparently mitigated some epidemics, even before Edward Jenners introduction of a safe vaccine based on cowpox virus (Schoenbach, 2000). In the early modern world, after about 1500, the West grew in wealth and world dominance, but it did not grow healthier. Infections that took a terrible toll on previously isolated societies, so-called virgin populations, became domesticated as world travel increased and urbanization progressed. Diseases that had been epidemic became endemic in urban centres (Brieger, 1999). During this period the development of crowded urban living, created the profoundest health problems. The contradiction between health and wealth of the nation was not lost. The promotion of fertility and personal hygiene education, the policing of sexually and socially transmitted diseases through policies of isolation and treatment and other major public health importance to the public health of modern time emerged during this period (Porter, 1994). In 1848, after studying a typhus epidemic, the German pathologist Rudolf Virchow stated that all epidemics had social causes-most typically poverty, hunger, and poor housing. Virchow believed that improving social conditions would have a positive effect on public health. This important early perspective plays a significant role in todays thinking about public health, especially when there are major health disparities among social classes within an individual society or between rich and poor countries (Open Collections Program, 2008). The period from 1750 until the mid-nineteenth century was characterized by unprecedented industrial, social, and political developments, and the resulting societal impacts were immense, culminating in the Industrial Revolution (Porter, 1994). In the modern public-health advocates emerged in response to the slum and desperate working conditions of nineteenth-century Europe and North America. In centres like New York, London and Berlin the struggle for proper sewerage, decent housing, clean water, factory inspectors, district health officers and a regime of food inspections was born (Remington (chairman), 1988). First major written contribution in the field of public health was in Germany, Between 1779-1816, Johann Peter Frank, a leading clinician, medical educator, and hospital administrator. Franks fame rests on his massive System einer vollstà ¤ndigen medizinischen Polizey (9 vol., 1779-1827; System of a Complete Medical Policy), which covers the hygiene of all stages of a mans life. He undertook to systematize all that was known on public health and to devise detailed codes of hygiene for enactment. He was among the first to urge international regulation of health problems, and he endorsed the notion of medical police, whereby one of the duties of the state was to protect the health of its citizens (Frank, 2008). On the other hand in England 1788, Jeremy Bentham in the hope of making a political career, he settled down to discovering the principles of legislation. The great work on which he had been engaged for many years, An Introduction to the Principles of Morals and Legislation, was published in 1789. In this book he defined the principle of utility as that property in any object whereby it tends to produce pleasure, good or happiness, or to prevent the happening of mischief, pain, evil or unhappiness to the party whose interest is considered. Mankind, he said, was governed by two sovereign motives, pain and pleasure; and the principle of utility recognized this state of affairs. The object of all legislation must be the greatest happiness of the greatest number. He deduced from the principle of utility that, since all punishment involves pain and is therefore evil, it ought only to be used so far as it promises to exclude some greater evil.(Bentham, 2008). Through Benthams work Chadwick was influenced to produce his famous work General Report on the Sanitary Condition of the Labouring Population of Great Britain (1842). As secretary of the royal commission on reform of the poor laws (1834-46), Chadwick was largely responsible for devising the system under whi ch the country was divided into groups of parishes administered by elected boards of guardians, each board with its own medical officer. Later, as commissioner of the Board of Health (1848-54), he conducted a campaign that culminated in passage of the Public Health Act of 1848. This legislation embodied his belief that public health should be administered locally so as to encourage the people to participate in their own protection (Chadwick, 2008). In1854. London was in the middle of an outbreak of cholera. At the time, Europeans did not know what caused cholera. People saw that a lot of people were getting sick and dying, and they ran away to other places hoping they would not get sick too. The discovery owing largely to the work of a mid-nineteenth-century English doctor named John Snow. He watched who was getting sick very carefully. He made a map and put a mark on the map for each person who had got sick and died (Steven, 2006). Cholera is caused by a comma-shaped bacterium-Vibrio cholerae-whose role was identified by the German physician Robert Koch in 1883. By far the most common route of infection is drinking contaminated water. And, since water comes to contain V. cholerae through the excrement of cholera victims, an outbreak of the disease is evidence that people have been drinking each others feces (Steven, 2006). The classic investigations on the transmission of cholera by John Snow in 1854 and other diseases such as typhoid fever by William Budd in 1834, and puerperal fever by Ignaz Semmelweis in 1847 led to understanding and the ability to reduce the spread of major infections and other studies and researches and give rise to the birth of epidemiology (Schoenbach, 2000) which is a very important field in the modern public health. Two major points can be drawn from historical perspective with the 19th century the dramatic advances in the effectiveness of public health  ­ the great sanitary awakening and the advent of bacteriology and the germ theory (Schoenbach, 2000). The rapid advances in the scientific knowledge about causes and prevention of numerous diseases brought tremendous changes in public health. Many major contagious diseases were brought under control through science applied in public health. The identification of bacteria and the development of interventions such as immunization and water purification techniques provided a means of controlling and preventing the spread of diseases (Remington (chairman), 1988).The advance in understanding of infectious disease that constituted the arrival of the bacteriologic era at the end of the century dramatically increased the effectiveness of public health action. In one dramatic example, mosquito control brought the number of yellow fever deaths in Havana from 305 to 6 in a single. Cholera, typhoid fever, and tuberculosis, the great scourges of humanity, rapidly came under control in the industrialized countries (Schoenbach, 2000). However, with the decline in severity of infectious disease came a rise in mental illnesses, drug addictions, chronic diseases, cancer, and injuries and health damage associated with industrial labour and new emergence of infectious diseases associated with lifestyle such as HIV, Sexually Transmitted Diseases and re-emergence of diseases once thought defeated or least controlled like TB and malaria are back and have developed resistance to the drugs. Hospitals are today besieged by new forms of infection such as MRSA and C. dificiles that are resistant to most known antibiotics because of abuse and misuse of antibiotics. The changing demographic profile of the country such as increasing over 65 years population, the financial, health and care cost and provisions, ethnicity, diversity, the natural environment including source of water, types of food, clean air, different philosophies about animal use in research, technological advances such as bio-engineering, genetic engineering and human embryonic technology adds to the challenges of the modern public health. Over the course of history such as the Sanitary movement of the nineteenth century and the development of bacteriology substantially lowered death rates from enteric diseases and other serious health problems still existed (House of Commons). Despite remarkable success in lowering deaths from typhoid, diphtheria, and other contagious diseases, considerable disability continuous to exist in the population. It also became clear that diseases, even for treatment was available, still predominantly affected urban poor (Remington (chairman), 1988). In the Twentieth Century, health, as measured by life expectancy, has improved for the population of Britain to a remarkable extent. Life expectancy in England and Wales has increased from 52 years for men and 55 years for women in 1910, to 74 years and 79 years respectively in 1994. Over the same period infant mortality has fallen from around 105 per thousand to six per thousand. Over the past twenty years, overall mortality rates have continue d to decrease. However, health indicators such as mortality and morbidity rates have not improved at the same rates for everyone, with the result that health gap between the healthiest groups and the least healthy groups has now widened and is widening further (House of Commons, 2001). Health inequalities between develop countries and developing countries still exist at this modern time. Concern about health inequalities and other distributional aspects (disparity) of health status and service use has enjoyed varying degrees of attention over the years. During the 1970s and early 1980s, distributional concerns (i.e. a concern for about the health status of different socio-economic groups within society as distinct from the overall societal average) were dominant in thought about international health. These concerns then receded for about a decade, from around the mid-1980s to the mid-1990s, as attention turned from equity to efficiency. Now, the pendulum has begun to swing back, and distributional concerns are on the rise (Gwatkin, 2002). Those who are most vulnerable to evolving health crises tend to be the poor and marginalized who already suffer from numerous inequities and lack of opportunities. Another striking example of the disparity in emerging health issues is found in environmental health. While the industrialized world, representing 15% of the worlds population, consumes more than 60% of world energy, the developing world shoulders the greater health burden from modern environmental hazards. According to the World Health Organization, more than 40% of the total disease burden (in disability adjusted life years lost DALYs) due to urban air pollution occurs in developing countries. Children are especially vulnerable to chemical, physical and biological hazards in their environments because they are in a very active growth stage and the ability of their bodies to detoxify is not fully developed (Global Health Council, 2008). Despite progress over the last decades, health conditions in many developing countries are still unsatisfactory and, in most instances, health outcomes in these economies remain below those attained in the developed countries, with a significant share of the populations suffering from reventable and/or easily treatable diseases. To a large extent, global inequalities in health outcomes eflect the enormous socio-economic disparities that exist between rich and poor countries. Simultaneously, inequalities in health outcomes are prevalent between or among different socio-economic, ethnic, racial, cultural groups in a country: for example, between male and female, between urban and rural populations, between rich and poor groups, the old and the young, etc. (CDP Working Group on Global Public Health, 2009) The world is entering a new era in which, paradoxically, improvements in some health indicators and major reversals in other indicators are occurring simultaneously. Rapid changes in an already complex global health situation are taking place in a context in which the global public-health workforce is unprepared to confront these challenges (Beaglehole et al, 2004). Modern technologies give rise to modern public health problems such as high rates of occupational diseases and industrial injuries led to programs for industrial hygiene and occupational health. Mental health (stress and depression) was identified as a public health issue, and specific nutritional deficiencies were recognized as risk factors for a spectrum of diseases and other health nutritional related diseases such as obesity and malnutrition. The urban development patterns and global trade policies have had a direct impact on the emergence of preventable injuries and tobacco use as major public health threats. In 2000, unintentional injuries (e.g. road traffic injuries and poisoning) and intentional injuries (e.g. interpersonal violence and war) accounted for 9% of the world deaths and 12% of the global burden of disease and according to WHOs Tobacco Free Initiative, tobacco use accounted for 6% of the world deaths in 1990; however, if current use patterns persist, deaths due to tobacco use are expected to increase to 18% by the year 2020 (Global health Council, 2008). Another modern public health issue is the concept of Drug abuse is a major public health problem that impacts society on multiple levels. Directly or indirectly, every community is affected by drug abuse and addiction, as is every family. Drugs take a tremendous toll on our society at many levels (National Institute of Drug Abuse, 2008) and the problem of infectious diseases is another issue of present public health. According to the World Health Organizations 2004 World Health Report, infectious diseases accounted for about 26 percent of the 57 million deaths worldwide in 2002. Collectively, infectious diseases are the second leading cause of death globally, following cardiovascular disease, but among young people (those under the age of 50) infections are overwhelmingly the leading cause of death. In addition, infectious diseases account for nearly 30 percent of all disability-adjusted life years (DALYs), which reflect the number of healthy years lost to illness. Todays infectious diseases can be a newly emerging disease, is a disease that has never been recognized before, such as HIV/AIDS is a newly emerging disease, as is severe acute respiratory syndrome (SARS), Nipah virus encephalitis, and variant Creutzfeld-Jakob disease while Re-emerging, or resurging, diseases are those that have been around for decades or centuries, but have come back in a different form or a different location. Examples are West Nile virus in the Western hemisphere, monkeypox in the United States, and dengue rebounding in B razil and other parts of South America and working its way into the Caribbean. Deliberately emerging diseases are those that are intentionally introduced. These are agents of bioterror, the most recent and important example of which is anthrax. Newly emerging, re-emerging, and deliberately emerging diseases are all treated much the same way from a public health and scientific standpoint (Fauci, 2006). Conclusion To tackle the major global health challenges effectively, the practice of public health will need to change. It is not sufficient to focus only on urgent health priorities, for example, HIV/AIDS, tuberculosis, and malaria in Africa, or the narrowly focused Millennium Development Goals. Programmes and policies are required that respond to poverty-the basic cause of much of the global burden of disease-prevent the emerging epidemics of non-communicable disease, and address global environmental change, natural, and man-made disasters, and the need for sustainable health development. The justification for action is that health is both an end in itself-a human right-as well as a prerequisite for human development (Beaglehole et al, 2004) and it is important to recognised the potential value of historical research for studying health services and for influencing health care policy. Responsibility for the lack of use of history in formulating policy lies both with policy-makers and historia ns. History can help them realize the constraints they face and help them plan accordingly, a situation well expressed by Antonio Gramsci in the 1920s: man can affect his own development and that of his surroundings only so far as he has a clear view of what the possibilities of action open to him are. To do this he has to understand the historical situation in which he finds himself: and once he does this, then he can play an active part in modifying that situation. historys contribution complements those from other disciplines. It has an additional unique role. It can help policy-makers understand the limitations they inevitably face and, in doing so, can help them maintain realistic expectations. Carefully formulated policies to shape the future are always going

Essay on The Holy Bible - The Authorship of Genesis :: Holy Bible Genesis Essays

The Authorship of Genesis Is the book of Genesis real or fiction? This is an age-old question. There are many thousands of Christians, who believe that Genesis is the absolute word of God. Many of these people believe that Moses wrote the book of Genesis, and believe that God himself told him what to write. Those who believe Moses wrote it really believe that God created the heaven and earth as well as all living things including man. Then there are those who believe Genesis is nothing more than fiction. They do not believe that Moses or anyone else wrote Genesis. They do not believe that God created the heaven or earth. They believe we evolved from either fish or monkeys. They believe Genesis is nothing more than a fairytale written a long time ago. That is why when we look at the age-old question about the authorship of Genesis. We most look at three very important perspectives about, which may or may not have written Genesis. The first perspective we will look at is the belief that Moses is the author of Genesis. The second perspective we will look at, is the belief that Moses and many other authors wrote the book of Genesis. The third perspective is that Moses didn’t write Genesis at all, many historians and theologians believe that different writers contributed to the writings of Genesis. When looking at that perspective that Moses was the sole author of Genesis. We must understand that this belief is deeply held by many conservative scholars and most of the Christian world. Those who believe that Moses was the author of Genesis, believe there are three ways which Moses transmitted Genesis. The first method was by direct revelation from God. Those who believe this believe that God spoke and told Moses what to write. These people believe that, "All scripture is given by the inspiration of god," (II Timothy 3:16). They also believe the Bible is infallible word of God and cannot lie, so when Jesus Christ himself stated, " And at the beginning Moses and all prophets he expounded unto them in all the scriptures the things concerning himself. These are the words which I spoke unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in all the psalms concerning me" (Luke 24:27,44). Essay on The Holy Bible - The Authorship of Genesis :: Holy Bible Genesis Essays The Authorship of Genesis Is the book of Genesis real or fiction? This is an age-old question. There are many thousands of Christians, who believe that Genesis is the absolute word of God. Many of these people believe that Moses wrote the book of Genesis, and believe that God himself told him what to write. Those who believe Moses wrote it really believe that God created the heaven and earth as well as all living things including man. Then there are those who believe Genesis is nothing more than fiction. They do not believe that Moses or anyone else wrote Genesis. They do not believe that God created the heaven or earth. They believe we evolved from either fish or monkeys. They believe Genesis is nothing more than a fairytale written a long time ago. That is why when we look at the age-old question about the authorship of Genesis. We most look at three very important perspectives about, which may or may not have written Genesis. The first perspective we will look at is the belief that Moses is the author of Genesis. The second perspective we will look at, is the belief that Moses and many other authors wrote the book of Genesis. The third perspective is that Moses didn’t write Genesis at all, many historians and theologians believe that different writers contributed to the writings of Genesis. When looking at that perspective that Moses was the sole author of Genesis. We must understand that this belief is deeply held by many conservative scholars and most of the Christian world. Those who believe that Moses was the author of Genesis, believe there are three ways which Moses transmitted Genesis. The first method was by direct revelation from God. Those who believe this believe that God spoke and told Moses what to write. These people believe that, "All scripture is given by the inspiration of god," (II Timothy 3:16). They also believe the Bible is infallible word of God and cannot lie, so when Jesus Christ himself stated, " And at the beginning Moses and all prophets he expounded unto them in all the scriptures the things concerning himself. These are the words which I spoke unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in all the psalms concerning me" (Luke 24:27,44).

Community Service Essay :: Community Service Essays

People’s lives are changed every day by their actions and experiences. This past summer, I participated in a community service project, an experience that opened my eyes in many ways. I was a volunteer at the County Memorial Hospital. In my time as a volunteer at the hospital, I was able to meet patients and staff members from all over the world and learn about their life experiences. Listening to all of their stories has made me truly appreciate everything which I have. One experience that I will always remember is the day I was running errands and had the opportunity to meet a very special patient. She was a sweet woman who was originally from Mexico. We were having a friendly conversation when she asked me about why I chose to do community service at the hospital. I explained to her that I planned on majoring in the medical field one day and I was working on obtaining community service hours. We got to talking about the education systems in our countries. In our conversation I learned that only selected people were given the opportunity to receive an education in her native country of Mexico. She told me about the poor education system and the extreme poverty which debilitates Mexico. As a United States citizen, I am provided with a variety of options for education. People in Mexico must fight to obtain access to any education. This made me realize how truly fortunate I am. At the beginning of this volunteer experience, I walked in hopeful that I would gain some knowledge about the different careers that the medical field possesses, but I got so much more than that. I learned that community service is about making an impact in the lives of other members who share my community. At the end of volunteer services I have decided on a major, I am now striving to become a physician’s assistant. In this position, not only do I get to care for patients, but I am presented with the opportunity to change their lives. I will be able to see firsthand the diversity of cultures from around the world.

Statement of Educational Goals Essay -- Philosophy of Education Teachi

Statement of Educational Goals The role of the teacher has changed, perhaps evolved is a better word, since students left the atmosphere of home schooling to that of the classroom. I'm sure that there have always been innovative teachers, but lecture and paperwork (or slate board work) were at one time the norm. In some classes it still is. However, the fact that we have so many stu- dies concerning the development of learning skill, such as the four stages that Piaget ident- ified, and so many theories on the best way to teach a child, such as Constructivism versus Behavorialism, indicates that many educators have realized there have to be better ways, than exclusive lecture and paperwork, to evoke learning. We have learned in our educational courses there are several styles of learning that each of us use one or more of. This is a challenge to the teacher, because it means we can't con- struct all our lessons based on only one style (which is usually our own learning style). We, as teachers, must be willing to expand our own realm of thinking and try new approaches. I love this concept, since I would get bored if I had to teach the same way every day. In my personal view, a classroom that is learning is not the one where seats are neatly in their rows, each child is busy completing a worksheet and no voices are heard. Give me clusters of desks, with students collaborating on projects and the air buzzing with the sound of excited voices. I feel that textbooks should be used as reference tools, not the sole amount of knowledge we want to obtain on any particular subject. In fact, I believe that the true measure of the success of a teacher is when students endeavor to know more. How can this be ac... ...bjects like Social Studies that require remembering facts and dates. What can you do in that situation? I truly believe that board games, set up along the line of "Sorry" and using an ever expanding set of question and answer cards, could be an enjoyable and effective way for students to recall social studies facts, if played on a regular basis. Other topics requiring memorization, such as the 50 states or the American presidents, could be dealt with by developing trading cards in which students strive to com- plete a set. I believe that my job as a teacher is not simply to place knowledge in my students heads. I must also help them understand that knowledge and show them how they can use it throughout their lives. To be truly successful at my job I must transfer my excitement for learning and curiosity to my students, so they will want to learn more.

Comparing Extreme Programming and Waterfall Project Results

Comparing Extreme Programming and Waterfall Project Results Feng Ji Carnegie Mellon University Silicon Valley Campus Mountain View, CA, 94035 [email  protected] com Todd Sedano Carnegie Mellon University Silicon Valley Campus Mountain View, CA, 94035 todd. [email  protected] cmu. edu Abstract Waterfall and Extreme Programming are two software project methods used for project management. Although there are a number of opinions comparing the two methods regarding how they should be applied, none have used project data to clearly conclude which one is better.In this paper, we present the results of a controlled empirical study conducted at Carnegie Mellon University in Silicon Valley to learn about the effective transition from traditional development to agile development. We conducted a comparison research against these two approaches. Multiple teams were assigned a project; some used Waterfall development, others used Extreme Programming. The purpose of this research is to look at advantages and disadvantages based upon the outcomes, generated artifacts, and metrics produced by the teams. 1. Introduction 1. 1.Agile vs Traditional Since the early 1970s, numerous software managers have explored different ways of software development methods (such as Waterfall model, evolutionary model, spiral model etc. ) those have been developed to accomplish these goals and have been widely used by the software industry [1]. Methodologists often describe the Waterfall method as a stereotypical traditional method whereas they describe Extreme Programming as the stereotypical agile method. The Waterfall model, as the oldest traditional software development method, was cited by Winston W.Royce in 1970 [2]. He divided the software development lifecycle into seven sequential and linear stages: Conception, Initiation, Analysis, Design, Construction, Testing, and Maintenance. The Waterfall model is especially used for large and complex engineering projects. Waterfall's lasting imp ression upon software engineering is seen even in the Guide to Software Engineering Body of Knowledge which introduces the first five knowledge areas based upon their sequence in the Waterfall lifecycle even though the Guide does not recommend any particular lifecycle [3].Although the Waterfall model has been adopted in many large and complex projects, it still has some inherent drawbacks, like inflexibility in the face of changing requirements [1]. If large amounts of project resources have been invested in requirements and design activities, then changes can be very costly later. High ceremony documentation is not necessary in all projects. Agile methods deal well with unstable and volatile requirements by using a number of techniques of which most notable are: low ceremony documents, short iterations, early testing, and customer collaboration.Kent Beck and Cynthia Andres define Extreme Programming 2. 0 with many practices [4], like Pair Programming, Test First Programming, and Co ntinuous Integration and so on. These characteristics enable agile methods to obtain the smallest workable piece of functionality to deliver business value early and continually improving it while adding further functionality throughout the life of the project [5]. 1. 2. PET project background Carnegie Mellon University Silicon Valley students start their masters program with the Foundations of Software Engineering course. This course is team-based, project-based, and mentored.Each team builds The Process Enactment Tool (PET). The user personas are software developers and managers. The tool helps users plan, estimate, and execute a project plan while analyzing historical data. The tool's domain encourages students to learn about software lifecycles and methods while understanding the benefit of metrics and reflection. 1. 2. 1. PET 1. 0: In 2001, Carnegie Mellon had one of the largest outsourcing firms in the world develop Pet 1. 0. Later the student teams were brought in to do the n ext release. The initial offerings of the course had the teams follow a Waterfall lifecycle.The faculty decided to use Extreme Programming as the method for the Foundations course because it was an agile method, it had good engineering practices, and it was a safe sandbox environment for engineers to try paired programming since many managers in industry were initially skeptical about its benefits. In 2005, the faculty allowed three of the sixteen teams tried our new curriculum to see if there were any serious issues in the switch, while other thirteen teams continued to follow a start point in 2004. The feedback was extremely positive so in 2006, all teams followed Extreme Programming.For the project plan duration, Waterfall teams needed fifteen weeks to finish their tasks where as Extreme Programming teams were given only thirteen weeks, a 13% reduction in time. 1. 2. 2. PET 1. 1: In 2005, the VP of Engineering advised the three teams that rewriting the code from scratch would be easier than working with the existing code base. Team 30:1 decided to use the latest in Java technologies including Swing and Hibernate. PET 1. 1, the team's product became the starting point for the students in the following year. 1. 2. 3. PET 1. 2: In 2008, the faculty switched the core technology from Java to Ruby on Rails.Ruby on Rails' convention over configuration, afforded a lower learning curve for students. For Pet 1. 2, students would build their projects from scratch. 2. Related work Much research has been done as to when to use an agile method and when to use a traditional method. For example, Boehm Turner's home grounds look at several characteristics, criticality, culture, and dynamism [6]. Our paper aims to extend these limitations to some degree by estimating Waterfall and XP in an academic case study, which provide a substantive ground for researchers before replicating their ideas in industry.Basili [7] presented a framework for analyzing most of the experimental w ork performed in software engineering. We learned that how to conduct a controlled experiment. Andrew and Nachiappan [8] reported on the results of an empirical study conducted at Microsoft by using an anonymous web-based survey. They found that one third of the study respondents use Agile methodologies to varying degrees and most view it favorably due to improved communication between team members, quick releases and the increased flexibility of agile designs.Their findings that we will consider in our future work is that developers are most worried about scaling Agile to larger projects, and coordinating agile and traditional teams. Our work is closely related to the work by Ming Huo et al [9]. They compared the Waterfall model with agile processes to show how agile methods achieve software quality. They also showed how agile methods attain quality under time pressure and in an unstable requirements environment. They presented a detailed Waterfall model showing its software qualit y support processes.Other work has only illustrates one or some Agile practices such as pair programming [10]. 3. Experimental methodology Our research was conducted primarily using Glaser's steps [11] in the constant comparison method of analysis. Step1: Begin collecting data. We collected more than 50 teams’ detailed data during a five year period as Table 1 shows. Table 1. Team building the same project 2004 2005 2005 2006 2007 2008 Method Waterfall Waterfall XP XP XP XP Language Java Java Java Java Java Ruby Project PET1. 0 PET1. 0 PET1. 0 PET1. 1 PET1. 1 PET1. 2 Numbers of Teams 10 13 3 9 6 11Step2: Look for key issues, recurrent events, or activities in the data that become categories for focus. The approach in software design makes us categorize the data into two distinctive software development methods, namely Waterfall and Extreme Programming. Step3: Collect data that provides many incidents of the categories of focus with an eye to seeing the diversity of the dimens ions under the categories. According to Basili[7], we provided some metrics to compare these two categories, Waterfall and XP. Requirements Metrics M1: Numbers of UI screens (ie. mockup) M2: Numbers of use cases (story cards)M3: Pages of Software Requirements Specification (SRS) documents M4: Pages of User Requirements Documents (URD) Design Metric M5: Pages of detailed design documents Implementation Metrics M6: Lines of code M7: Percentage of lines of comments to lines of source code M8: Lines of test cases M9: Ratio of lines of test code to lines of program code Step4: Write about the categories that we are exploring, attempting to describe and account for all the incidents we have in our data while continually searching for new incidents. Step5: Work with the data and emerging model to discover basic social processes and relationships.Step6: Engage in sampling, coding, and writing as the analysis focuses on the core categories. During 2005, there were 13 teams following Waterfal l and 3 teams following XP during the same period of time. These three teams, team Absorb, GT11 and 30:1 are interesting teams to examine as we can compare their data against the Waterfall teams doing the exact same project. 4. Experimental results 4. 1. UI screens (M1) and Story cards (M2) comparison These wide ranges can be seen in Table 2 and Table 3 where the standard deviation of the UI mockups is often half the document size.Comparing use cases to story cards in Table 3, we see that the standard deviation for use cases is much lower than the standard deviation for story cards. This is expected since use cases are a higher ceremony document when compared to story cards. Teams might give little consideration to how to represent each feature on a story card whereas a team writing a use case step by step how a user will use the system will spend much more time thinking about the coupling and cohesion of each use case. Table 2. Average numbers and Standard Deviation of mockups Year 004 2005 Absorb GT11 30:1 2006 2007 2008 Average mockups 15. 5 11. 8 17 18 9 15 12. 8 17. 7 Standard Deviation of mockups 6. 6 6. 3 5. 4 3. 1 8. 8 Table 3. Average numbers and Standard Deviation of use cases/story cards Year Average Number Standard Deviation 2004 User cases 18. 7 2005 User cases 18. 9 2. 3 Absorb Story cards 15 1. 6 GT11 Story cards 13 30:1 Story cards 18 2006 Story cards 16. 6 2007 Story cards 18. 3 2008 Story cards 16. 6 7. 5 6. 8 8. 0 4. 2. Requirement documents (M3&M4) Starting with PET 1. 0, Waterfall teams on average add 1. 7 use cases and modified 2. use cases. Teams were given a 28 page System Requirements Specification (SRS) and on averaged finished with a 34 page SRS. XP teams starting with PET 1. 0 were given the same starting documents. Instead of modifying them, the teams created story cards that represented each new feature. Instead of spending time on writing use cases, XP teams started coding sooner. Because XP has an emphasis on low ceremony docume nts, they had more time to code resulting in an effort savings for the teams. 4. 3. Comparing the size of the detail design documents (M5) There are some insights from Table 4.Waterfall teams using Pet 1. 0 started with a 21 page Detailed Design Document (DDD), which they altered to reflect their new use cases. Waterfall teams typically did not update their design documents at the end of the project. Given the scope of the project, Waterfall teams’ final code matched the original design with respect to new classes. Table 4. Average pages and Standard Deviation of Detail Design Documents Year 2004 2005 Absorb GT11 30:1 2006 2007 2008 Starting Point 21 21 21 21 0 14 14 0 Average DDD 25. 8 31. 1 18 22 14 18. 3 12. 5 9. 5 Standard Deviation 8. 39 7. 48 7. 70 7. 8 5. 19 XP teams increased their design documents with each iteration. Because the XP teams followed Test-Driven Development, they wrote their code and had an emergent design. At the end of each iteration, the teams were a sked to update the design document to reflect important design decisions they had made during that iteration. Therefore, the design document serves a different purpose in XP. It is not a template or blueprint for future construction. Instead, it can be a guide for understanding why certain decisions were made. In this regard, it is a biography of the development, ot a plan of action. 4. 4. New lines of source code and comments, Percentage of comments in codes Table 5 shows that Waterfall teams starting with Pet 1. 0 produced lines of code with a wide variance. The two XP teams starting with Pet 1. 0 fell right within the middle of the average. Because instead of producing some documents up front, the XP teams spent a longer time coding, one would expect them to produce more lines of code. The research results also show that XP Teams had a higher percentage of comments in source code. Table 5. Average and Standard Deviation of new lines in code YearLanguage Average new lines in code Standard Deviation Lines of test codes Ratio of test codes to program code 2004 2005 Absorb GT11 30:1 2006 2007 2008 Java Java Java Java Java Java Java Ruby 9,429 11,910 13,288 14,689 0 9,628 8,572 3,670 7,946 9,851 4,920 5,465 1,507 3378 4164 1380 3186 947 3555 2212 3,255 8% 13% 4% 8% 8% 16% 10% 90% 4. 5. Submitted lines of test codes and ratio of test code to program code The observation of these two metrics in Table 5 shows that the amount of test code written by the Waterfall teams equals the amount of test code written by the XP teams.Initially the faculty thought that Test-Driven Development would increase the amount of testing code, however, given a slow adoption rate of Test-Driven Development, programmers resorted to what was familiar and thus produced similar results. 5. Conclusion In this paper, we observed and presented the data from five years of 50 teams developing the same project each year and the affects of transitioning from Waterfall to Extreme Programming. The ch aracteristics between these two methods were evaluated and compared.Waterfall teams spent more time creating high ceremony documents where as Extreme Programming teams spent more time writing code and documenting their design in their code. Surprisingly, the amount of code and features completed were roughly the same for both methods suggesting that on a three month project with three to four developers it doesn't matter the method used. It is challenging to conduct this kind of analysis of the data in hindsight. Given that this is not a toy problem, and the freedom teams have in the execution of their projects, setting up this kind of experiment properly in advance is also challenging. . References [1] Sommerville, Software engineering, 8th ed. , New York: Addison-Wesley, Harlow, England, 2006. [2] W. Royce, Managing the Development of Large Software Systems, IEEE WESTCON, Los Angeles, 1970. [3] A. Abran and J. W. Moore, Guide to the software engineering body of knowledge: trial ve rsion (version 0. 95) IEEE Computer Society Press, Los Alamitos, CA, USA, 2001. [4] Kent Beck and Cynthia Andres, Extreme programming eXplained: embrace change, Second Edition, MA: Addison-Wesley, 2004. 5] Mike Cohn, Agile estimating and planning, Prentice Hall Professional Technical Reference, Nov 11, 2005. [6] Barry, Boehm and Richard Turner, Balancing Agility and Discipline: A Guide for the Perplexed, Addison Wesley, August 15, 2003. [7] Basil, V. R. , Selby, R. and Hutchens, D. , Experimentation in Software Engineering, IEEE Transactions on Software Engineering (invited paper), July 1986. [8] Andrew Begel and Nachiappan Nagappan, Usage and Perceptions of Agile Software Development in an Industrial Context: An Exploratory Study, MiIEEE Computer Society MSR-TR-2007-09, no. 2007): 10. [9] Ming Huo, June Verner, Muhammad Ali Babar, and Liming Zhu, How does agility ensure quality? , IEEE Seminar Digests 2004, (2004):36. [10] Jan Chong, Robert Plummer, Larry Leifer, Scott R. Klemmer, and George Toye. Pair Programming: When and Why it Works, In Proceedings of Psychology of Programming Interest Group 2005 Workshop, Brighton, UK, June 2005. [11] Glaser, Barney G, Strauss, and Anselm L. , The Discovery of Grounded Theory: Strategies for Qualitative Research, Aldine Publishing Company, Chicago, 1967. Comparing Extreme Programming and Waterfall Project Results Comparing Extreme Programming and Waterfall Project Results Feng Ji Carnegie Mellon University Silicon Valley Campus Mountain View, CA, 94035 [email  protected] com Todd Sedano Carnegie Mellon University Silicon Valley Campus Mountain View, CA, 94035 todd. [email  protected] cmu. edu Abstract Waterfall and Extreme Programming are two software project methods used for project management. Although there are a number of opinions comparing the two methods regarding how they should be applied, none have used project data to clearly conclude which one is better.In this paper, we present the results of a controlled empirical study conducted at Carnegie Mellon University in Silicon Valley to learn about the effective transition from traditional development to agile development. We conducted a comparison research against these two approaches. Multiple teams were assigned a project; some used Waterfall development, others used Extreme Programming. The purpose of this research is to look at advantages and disadvantages based upon the outcomes, generated artifacts, and metrics produced by the teams. 1. Introduction 1. 1.Agile vs Traditional Since the early 1970s, numerous software managers have explored different ways of software development methods (such as Waterfall model, evolutionary model, spiral model etc. ) those have been developed to accomplish these goals and have been widely used by the software industry [1]. Methodologists often describe the Waterfall method as a stereotypical traditional method whereas they describe Extreme Programming as the stereotypical agile method. The Waterfall model, as the oldest traditional software development method, was cited by Winston W.Royce in 1970 [2]. He divided the software development lifecycle into seven sequential and linear stages: Conception, Initiation, Analysis, Design, Construction, Testing, and Maintenance. The Waterfall model is especially used for large and complex engineering projects. Waterfall's lasting imp ression upon software engineering is seen even in the Guide to Software Engineering Body of Knowledge which introduces the first five knowledge areas based upon their sequence in the Waterfall lifecycle even though the Guide does not recommend any particular lifecycle [3].Although the Waterfall model has been adopted in many large and complex projects, it still has some inherent drawbacks, like inflexibility in the face of changing requirements [1]. If large amounts of project resources have been invested in requirements and design activities, then changes can be very costly later. High ceremony documentation is not necessary in all projects. Agile methods deal well with unstable and volatile requirements by using a number of techniques of which most notable are: low ceremony documents, short iterations, early testing, and customer collaboration.Kent Beck and Cynthia Andres define Extreme Programming 2. 0 with many practices [4], like Pair Programming, Test First Programming, and Co ntinuous Integration and so on. These characteristics enable agile methods to obtain the smallest workable piece of functionality to deliver business value early and continually improving it while adding further functionality throughout the life of the project [5]. 1. 2. PET project background Carnegie Mellon University Silicon Valley students start their masters program with the Foundations of Software Engineering course. This course is team-based, project-based, and mentored.Each team builds The Process Enactment Tool (PET). The user personas are software developers and managers. The tool helps users plan, estimate, and execute a project plan while analyzing historical data. The tool's domain encourages students to learn about software lifecycles and methods while understanding the benefit of metrics and reflection. 1. 2. 1. PET 1. 0: In 2001, Carnegie Mellon had one of the largest outsourcing firms in the world develop Pet 1. 0. Later the student teams were brought in to do the n ext release. The initial offerings of the course had the teams follow a Waterfall lifecycle.The faculty decided to use Extreme Programming as the method for the Foundations course because it was an agile method, it had good engineering practices, and it was a safe sandbox environment for engineers to try paired programming since many managers in industry were initially skeptical about its benefits. In 2005, the faculty allowed three of the sixteen teams tried our new curriculum to see if there were any serious issues in the switch, while other thirteen teams continued to follow a start point in 2004. The feedback was extremely positive so in 2006, all teams followed Extreme Programming.For the project plan duration, Waterfall teams needed fifteen weeks to finish their tasks where as Extreme Programming teams were given only thirteen weeks, a 13% reduction in time. 1. 2. 2. PET 1. 1: In 2005, the VP of Engineering advised the three teams that rewriting the code from scratch would be easier than working with the existing code base. Team 30:1 decided to use the latest in Java technologies including Swing and Hibernate. PET 1. 1, the team's product became the starting point for the students in the following year. 1. 2. 3. PET 1. 2: In 2008, the faculty switched the core technology from Java to Ruby on Rails.Ruby on Rails' convention over configuration, afforded a lower learning curve for students. For Pet 1. 2, students would build their projects from scratch. 2. Related work Much research has been done as to when to use an agile method and when to use a traditional method. For example, Boehm Turner's home grounds look at several characteristics, criticality, culture, and dynamism [6]. Our paper aims to extend these limitations to some degree by estimating Waterfall and XP in an academic case study, which provide a substantive ground for researchers before replicating their ideas in industry.Basili [7] presented a framework for analyzing most of the experimental w ork performed in software engineering. We learned that how to conduct a controlled experiment. Andrew and Nachiappan [8] reported on the results of an empirical study conducted at Microsoft by using an anonymous web-based survey. They found that one third of the study respondents use Agile methodologies to varying degrees and most view it favorably due to improved communication between team members, quick releases and the increased flexibility of agile designs.Their findings that we will consider in our future work is that developers are most worried about scaling Agile to larger projects, and coordinating agile and traditional teams. Our work is closely related to the work by Ming Huo et al [9]. They compared the Waterfall model with agile processes to show how agile methods achieve software quality. They also showed how agile methods attain quality under time pressure and in an unstable requirements environment. They presented a detailed Waterfall model showing its software qualit y support processes.Other work has only illustrates one or some Agile practices such as pair programming [10]. 3. Experimental methodology Our research was conducted primarily using Glaser's steps [11] in the constant comparison method of analysis. Step1: Begin collecting data. We collected more than 50 teams’ detailed data during a five year period as Table 1 shows. Table 1. Team building the same project 2004 2005 2005 2006 2007 2008 Method Waterfall Waterfall XP XP XP XP Language Java Java Java Java Java Ruby Project PET1. 0 PET1. 0 PET1. 0 PET1. 1 PET1. 1 PET1. 2 Numbers of Teams 10 13 3 9 6 11Step2: Look for key issues, recurrent events, or activities in the data that become categories for focus. The approach in software design makes us categorize the data into two distinctive software development methods, namely Waterfall and Extreme Programming. Step3: Collect data that provides many incidents of the categories of focus with an eye to seeing the diversity of the dimens ions under the categories. According to Basili[7], we provided some metrics to compare these two categories, Waterfall and XP. Requirements Metrics M1: Numbers of UI screens (ie. mockup) M2: Numbers of use cases (story cards)M3: Pages of Software Requirements Specification (SRS) documents M4: Pages of User Requirements Documents (URD) Design Metric M5: Pages of detailed design documents Implementation Metrics M6: Lines of code M7: Percentage of lines of comments to lines of source code M8: Lines of test cases M9: Ratio of lines of test code to lines of program code Step4: Write about the categories that we are exploring, attempting to describe and account for all the incidents we have in our data while continually searching for new incidents. Step5: Work with the data and emerging model to discover basic social processes and relationships.Step6: Engage in sampling, coding, and writing as the analysis focuses on the core categories. During 2005, there were 13 teams following Waterfal l and 3 teams following XP during the same period of time. These three teams, team Absorb, GT11 and 30:1 are interesting teams to examine as we can compare their data against the Waterfall teams doing the exact same project. 4. Experimental results 4. 1. UI screens (M1) and Story cards (M2) comparison These wide ranges can be seen in Table 2 and Table 3 where the standard deviation of the UI mockups is often half the document size.Comparing use cases to story cards in Table 3, we see that the standard deviation for use cases is much lower than the standard deviation for story cards. This is expected since use cases are a higher ceremony document when compared to story cards. Teams might give little consideration to how to represent each feature on a story card whereas a team writing a use case step by step how a user will use the system will spend much more time thinking about the coupling and cohesion of each use case. Table 2. Average numbers and Standard Deviation of mockups Year 004 2005 Absorb GT11 30:1 2006 2007 2008 Average mockups 15. 5 11. 8 17 18 9 15 12. 8 17. 7 Standard Deviation of mockups 6. 6 6. 3 5. 4 3. 1 8. 8 Table 3. Average numbers and Standard Deviation of use cases/story cards Year Average Number Standard Deviation 2004 User cases 18. 7 2005 User cases 18. 9 2. 3 Absorb Story cards 15 1. 6 GT11 Story cards 13 30:1 Story cards 18 2006 Story cards 16. 6 2007 Story cards 18. 3 2008 Story cards 16. 6 7. 5 6. 8 8. 0 4. 2. Requirement documents (M3&M4) Starting with PET 1. 0, Waterfall teams on average add 1. 7 use cases and modified 2. use cases. Teams were given a 28 page System Requirements Specification (SRS) and on averaged finished with a 34 page SRS. XP teams starting with PET 1. 0 were given the same starting documents. Instead of modifying them, the teams created story cards that represented each new feature. Instead of spending time on writing use cases, XP teams started coding sooner. Because XP has an emphasis on low ceremony docume nts, they had more time to code resulting in an effort savings for the teams. 4. 3. Comparing the size of the detail design documents (M5) There are some insights from Table 4.Waterfall teams using Pet 1. 0 started with a 21 page Detailed Design Document (DDD), which they altered to reflect their new use cases. Waterfall teams typically did not update their design documents at the end of the project. Given the scope of the project, Waterfall teams’ final code matched the original design with respect to new classes. Table 4. Average pages and Standard Deviation of Detail Design Documents Year 2004 2005 Absorb GT11 30:1 2006 2007 2008 Starting Point 21 21 21 21 0 14 14 0 Average DDD 25. 8 31. 1 18 22 14 18. 3 12. 5 9. 5 Standard Deviation 8. 39 7. 48 7. 70 7. 8 5. 19 XP teams increased their design documents with each iteration. Because the XP teams followed Test-Driven Development, they wrote their code and had an emergent design. At the end of each iteration, the teams were a sked to update the design document to reflect important design decisions they had made during that iteration. Therefore, the design document serves a different purpose in XP. It is not a template or blueprint for future construction. Instead, it can be a guide for understanding why certain decisions were made. In this regard, it is a biography of the development, ot a plan of action. 4. 4. New lines of source code and comments, Percentage of comments in codes Table 5 shows that Waterfall teams starting with Pet 1. 0 produced lines of code with a wide variance. The two XP teams starting with Pet 1. 0 fell right within the middle of the average. Because instead of producing some documents up front, the XP teams spent a longer time coding, one would expect them to produce more lines of code. The research results also show that XP Teams had a higher percentage of comments in source code. Table 5. Average and Standard Deviation of new lines in code YearLanguage Average new lines in code Standard Deviation Lines of test codes Ratio of test codes to program code 2004 2005 Absorb GT11 30:1 2006 2007 2008 Java Java Java Java Java Java Java Ruby 9,429 11,910 13,288 14,689 0 9,628 8,572 3,670 7,946 9,851 4,920 5,465 1,507 3378 4164 1380 3186 947 3555 2212 3,255 8% 13% 4% 8% 8% 16% 10% 90% 4. 5. Submitted lines of test codes and ratio of test code to program code The observation of these two metrics in Table 5 shows that the amount of test code written by the Waterfall teams equals the amount of test code written by the XP teams.Initially the faculty thought that Test-Driven Development would increase the amount of testing code, however, given a slow adoption rate of Test-Driven Development, programmers resorted to what was familiar and thus produced similar results. 5. Conclusion In this paper, we observed and presented the data from five years of 50 teams developing the same project each year and the affects of transitioning from Waterfall to Extreme Programming. The ch aracteristics between these two methods were evaluated and compared.Waterfall teams spent more time creating high ceremony documents where as Extreme Programming teams spent more time writing code and documenting their design in their code. Surprisingly, the amount of code and features completed were roughly the same for both methods suggesting that on a three month project with three to four developers it doesn't matter the method used. It is challenging to conduct this kind of analysis of the data in hindsight. Given that this is not a toy problem, and the freedom teams have in the execution of their projects, setting up this kind of experiment properly in advance is also challenging. . References [1] Sommerville, Software engineering, 8th ed. , New York: Addison-Wesley, Harlow, England, 2006. [2] W. Royce, Managing the Development of Large Software Systems, IEEE WESTCON, Los Angeles, 1970. [3] A. Abran and J. W. Moore, Guide to the software engineering body of knowledge: trial ve rsion (version 0. 95) IEEE Computer Society Press, Los Alamitos, CA, USA, 2001. [4] Kent Beck and Cynthia Andres, Extreme programming eXplained: embrace change, Second Edition, MA: Addison-Wesley, 2004. 5] Mike Cohn, Agile estimating and planning, Prentice Hall Professional Technical Reference, Nov 11, 2005. [6] Barry, Boehm and Richard Turner, Balancing Agility and Discipline: A Guide for the Perplexed, Addison Wesley, August 15, 2003. [7] Basil, V. R. , Selby, R. and Hutchens, D. , Experimentation in Software Engineering, IEEE Transactions on Software Engineering (invited paper), July 1986. [8] Andrew Begel and Nachiappan Nagappan, Usage and Perceptions of Agile Software Development in an Industrial Context: An Exploratory Study, MiIEEE Computer Society MSR-TR-2007-09, no. 2007): 10. [9] Ming Huo, June Verner, Muhammad Ali Babar, and Liming Zhu, How does agility ensure quality? , IEEE Seminar Digests 2004, (2004):36. [10] Jan Chong, Robert Plummer, Larry Leifer, Scott R. Klemmer, and George Toye. Pair Programming: When and Why it Works, In Proceedings of Psychology of Programming Interest Group 2005 Workshop, Brighton, UK, June 2005. [11] Glaser, Barney G, Strauss, and Anselm L. , The Discovery of Grounded Theory: Strategies for Qualitative Research, Aldine Publishing Company, Chicago, 1967.