buy custom PERT versus CPM essay

buy custom PERT versus CPM essay Research as shown that the most common project estimation technique employed by project mangers include PERT and CPM. PERT is an acronym that stands for Program Evaluation and Review Technique. According to Scott (2006), this technique provides definitive estimates of how long it would take to complete tasks. It involves generation of three estimates to come up with a final estimate. The three estimates include; optimistic time, pessimistic time and most likely time. The most optimistic case (O), gives the best case estimate of time to complete a task and it indicates a situation when everything is working right. The most pessimistic case (P), gives the worst case estimate of time to complete a particular task and it indicates a situation of the worst occurrence. The last estimate is the most likely case (M) which gives the normal estimated time to complete a task. Basically, this is the time expected to complete a task given the normal problems and opportunities. The three estimates are combined to create a single number that best describes how long it would take to complete a given task and then a weighted average of the three estimates is created with the most likely estimate being four-times than either optimistic or pessimistic estimate. PERT estimation technique can be used in a number of situations. For instance, it can be used in estimating the feasibility of a given project in terms of cost and scheduled time for its completion. Kheter (2010) highlights the advantages and disadvantages of this method which can be used to determine the circumstances under which the method can be applied. One of the advantages of this method is that it has got added flexibility of fast tracking or slowing down the project as required. Therefore, where flexibility is of essence, PERT estimation method can be applicable. The other advantage is that it helps one to arrive at a realistic starting or ending date for project activities. This makes the method more appropriate in determining the most probable duration that a given projectwould take. This method also facilitates identification of a critical path thus reducing the overall project risk. Therefore, in situations where a project manager wants to identify and minimize risks, this method can be appropriate. However, due to its disadvantages, as pointed out by Kheter (2010), it may not be suitable to use where the number of tasks or activities and dependencies are many. This is because as these activities and dependencies increase, complexities emerge thus increasing the risk of project failure. In addition, its lack of objectivity in the criteria used for defining initial optimistic and pessimistic estimates limits one to rely on it in future as the same criteria may not be applicable at that time. Finally, in situations where one may want the actual estimate of time needed to complete a given task, this method may not be reliable as it may lead to under-estimation of actual project time in some instances. CPM is another commonly used estimation technique and its also an acronym that stands for Critical Path Method. It is a step-by-step technique used in project planning and defines critical and non-critical tasks with an aim of preventing time-frame problems and project failure (Linda and Brennan, 2006). According to the writers, this method is best suited to projects consisting of numerous activities that interact in a complex manner. Unlike PERT which uses three estimates, CPM uses a single point estimation of the completion time. In CPM, activities can be determined whereas in PERT, activity estimates are based on probability. As earlier stated, this method is best suited to projects that have got numerous activities that interact in a complex manner. This adds to many other advantages of this method as highlighted by Shari and Rosalind (2005). The method shows the activities that are critical to maintain the schedule and which are not. Therefore, in situations where one wants to determine the most important activities to focus on, this offers the best option. Also, using thhis method, a project manager can determine the actual date for completing each activity and also compare what should be happening with what is taking place and take the corrective measures. Therefore, in a situation where one would like to have good control and monitoring of the project, this method can be applicable. This method also provides a graphical view of the project in which dependencies are displayed to help in scheduling. This helps in the planning of the project thus making it reliable. In addition, activities and their outcome can be shown as a network. It evaluates the activities that can run parallel to each other. Therefore, this method can be applicable in situations where there are numerous and complex activities that are to be carried out together. However, in situations where scheduling of personnel or the allocation of resources is needed, this method is not suitable as it does not support it. In addition, where larger projects are involved, it is not advisable to use this method as it can be complicated in such projects. Also, in cases where the project manger involved does not have sufficient knowledge of the method, it is not advisable to use the method as it is not always clear and needs to be calculated carefully. Apart from PERT and CPM, there are other project management cost and scheduling techniques such as function point counting, weighted average (WAVE), bottom-up, top-down and extrapolation. However, though these techniques can also be applied to cost estimation and scheduling, they cannot override the benefits derived from using either PERT or CPM. As earlier indicated, they are the most common tools of estimation and are more reliable and accurate when it comes to estimation. In conclusion, though PERT and CPM are the most common methods of estimation, the other methods cannot be underestimated as they can also offer some benefits which PERT or CPM cannot offer. However, I one would prefer PERT because it recognizes uncertainty in project time estimation and cost. Buy custom PERT versus CPM essay

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How far has law moved away from binary understandings of sex and Essay

How far has law moved away from binary understandings of sex and gender Critically discuss with reference to AT LEAST one aspec - Essay Example In the years where the feminist movement was strong, the clamour for laws in relation to gender discrimination was very much significant. In the years which followed said movement, civil provisions were implemented, primarily those seeking to prevent the proliferation of abusive and discriminatory gender-based acts. This paper will now discuss how far the law has moved away from binary understandings of sex and gender. It will critically discuss this issue with reference to the understanding of sex and gender and the gendering of the body. This essay is being carried out in order to establish a thorough review of available studies on gender bias and legal processes which seek to prevent and manage its manifestation. It is also being carried out in order to provide this student a detailed understanding of the available legal processes which have been put in place in relation to gender-based issues and activities. Body The terms sex and gender are often interchanged in their use or app lication. Even if they may refer to similar things, they actually refer to various aspects in a person’s life1. Sex is the anatomical difference between the sexes largely based on how they have developed from birth and to the person’s adolescent years. ... Under these conditions, the social constructs and gender expectation indicate that males are expected to play rough, and females to have a gentler and more refined side4. Males are expected to be physically strong and to play with cars and toy soldiers; females are expected to be physically weak and to play with dolls and non-violent games. The different interpretation and understanding of gender is the main issue for this essay. The current laws are varied based on the countries and the type of societies involved. In the international sphere however, the United Nations has set forth primary laws which are aimed towards protecting the rights of women, veering away from the binary understandings of sex or specific gender descriptions and roles5. The extent to which the law has moved away from binary understandings of sex and gender is a matter which can be evaluated based on specific topics, including the sexing of the body through male and female circumcisions and the sexing of the c hild. When considering the importance of legal gender, it is important to address different questions that help ensure its significant understanding. Some of these issues are legal by nature and others refer to more social considerations6. The current UK laws on legal gender recognize the male and female designations of individuals which are required for UK birth certificates7. These designations indicate legal sex and gender. These designations are also founded on sexual or anatomical considerations. A legal precedent in the UK on gender refers to the Corbett v. Corbett case in 1970 where the husband of a transsexual named April asked the courts to nullify their marriage because April was legally a male at

To what extent are organisations socially constructed phenomena Essay - 2

To what extent are organisations socially constructed phenomena - Essay Example In any case, the understanding of the relationship between organizations and society requires the following practice: each aspect of organizations has to be analyzed as of its potential interaction with social norms. In this context, change, culture and symbolism, as important elements of modern organizations, are analyzed and interpreted using appropriate theoretical frameworks. The relationship between organization and society is close but it can be periodically alternated under the influence of the local political and economic environment. 2. Organizations as socially constructed phenomena 2.1 Organization and society In order to understand the level at which society influences organizational practices, it would be necessary to refer to certain of the frameworks used for explaining the organizational ethics and structure, as parts of the organizational strategy for achieving the organizational mission. ... Organizations, as business units operating within a particular society, cannot avoid the influences from the society. This fact is reflected in various parts/ characteristics of organizations. For example, each organization is based on its workforce, a group of people having to perform specific tasks in various organizational departments. Society is constructed by groups of people, i.e. ‘families, peer groups and work groups’ (Tischler 2010, p.127) that cooperate for developing specific social or economic activities. In the study of Carroll et al. (2008) reference is made to another common element of society and organization: the technology. Technology, in various forms, is critical for the success of business operations. However, technology is also involved in the interests of the public. The most common example of this type is the technology used in healthcare organizations. The technology used in communications is another example where the intervention of technology i n social activities is made clear. In the context of its mission each organization is expected to invest on technology, which is expected to support the organizational growth. However, this practice may come in opposition to exiting social ethics. An indicative example of this case is included in the study of Carroll et al. (2008, p.352): biotechnology is a sector highly developed the last decades as it can help to the development of effective treatment for a series of diseases; however, this technology is also used for promoting activities which are not accepted by the society, as, for example, the research on cloning. Organizations that operate in the specific industry often have to face the strong opposition of the public, a fact indicating that the

Do We Have Souls? :: essays research papers

Do We Have Souls? On the question of 'Do we have souls' and 'Can they survive after death', this writer will attempt a reasoned explanation and defense of my views to this philosophical question. After careful explanation of my own views , thoughts, and careful examination of the selected materials for this paper; I have come to this conclusion: unlike the problem of free will, the question of human beings having souls and their survival after the physical body is deceased, is not an easily argued topic. The problem of free will [as an example] can be more rationally discussed and analyzed through tangible means such as patterned and learned behavior and its like, but in dealing with the question of souls and in accepting their existence, it is an intangible thing which cannot be proved or disproved [at least as long as the physical body is existing]. This writer believe that a discussion , no matter how seemingly rational or even irrational is purely speculation and can have no real physical proof of that existence. Of the read philosophers on this topic, all are speculatory in their attempt to prove, disprove, or even clarify their position of the topic in question. This writer will first contribute his own speculation and proceed to explore the selected philosophers material on this subject. Though it first must be said that most of the read material is or seems to be question-begging and therefore leads only to more questions from myself. The question of having souls and their existence after the physical body is deceased has always been on men's minds. From the first beginnings of written history from the Ancient Near Eastern civilizations [Egyptians, Mesopotamian] , men [people] have always regarded the afterlife and the question of souls. It was not given much philosophical thought until the ancient Greek sophists, in the decline of their city-states that this topic was explored, but not only explored but started to gather acceptance among the people. Again, only when 'physical' life was becoming less cherished due to the decline and unhappiness with their earthly surroundings. Though the Hebrew people spoke and thought of an afterlife for their spirit, it was really not until widespread Christianity came about, and again this was at the time of decline of the Roman Empire. My initial point being that the idea of souls and their existence seemed to grow stronger at times of great depression or strife [much like when people pray to God when they only need something]. It was then that faith and hope for a better

Migration into the United States Essay

Migration is synonymous with human movement from one place to another in search for better living conditions. Migration into the United States is not a new concept as the country owes its historical origin to individuals migrating to America from other parts of the world driven by various reasons. Some came searching for land to be used in agricultural production, others came in search for education and employment opportunities, others come in search for freedom, whereas others came running away from adversaries within their countries of origin. These are just but a few of the reasons leading to high rates of immigration to the United States. Being a historical concept, immigration issues have remained part of the unique forces that continue to shape the United States and this trend is far from over. This paper shall in brief, examine the concept of immigration in the United States and evaluate the current trends in regard to the issue. Immigration, a historical Concept: Migration in the United States can be traced back in the 16th century when immigrants from European countries including Britain, France, Netherlands, and Germany came to the Americas. These immigrants were generally referred to as ‘settlers’ looking for farm land to boost the fairly impoverished status. These were the individuals who were unable to cope up with the demands of their modernized economies. During this time, a substantial number of individuals came to the United States as indentured servants (Huspek, p 161). Such individuals could then enter into contracts with their employers in order to gain entry into the â€Å"new world†. The indentured servants had to endure spells of hardships and later given a piece of land which allowed them to work as free yeoman farmers (Huspek, p 163). The immigration trends changed during the 19th century when there was massive movement of people to the United States. Immigration to the United States has continued to increase as time goes by and the government estimates that there are millions of individuals who come to the United States each year. Of these millions, some usually enter the United States as illegal immigrants whereas others follow the legal procedural requirements (Bracey, p 116). Legal immigrants: Legal immigrants are defined in law as those individuals who gain admission to permanently reside in the United States in line with the legal requirements. They are often referred to as ‘green-card holders’. According to the Department of Homeland Security Office of Immigration Statistics (OIS), these are â€Å"aliens who are granted lawful permanent residence (LPR), aliens admitted for lawful permanent residence, immigrants admitted, and admissions† (Batalova, para 6). According to the law, there are three categories of legal immigrants which include family reunion, employment sponsorship, and humanitarian based as the case of refugees and asylum seekers. One can attain the United States citizenship in two ways which includes arriving as new legal permanent residents or by adjusting the previous status upon gaining entrance to the US so as to become a permanent resident. During the year 2008, there were more than 1. 1 million immigrants being admitted to the US. Legal immigrants can also gain access to the US through the green card lottery established by the Immigration Act of 1990 allowing for immigrant entry from those nations with poor rates of immigration to the US (Batalova, para 9). The graph below reflects the number of immigrants that have been coming to the US from the year 1986 to 2008: Immigrants Admitted to the United States (in thousands): Total and by Type, 1986 to 2008 Source: Jeanne Batalova Illegal Immigrants: These are defined as the alien population which is not part of the legal residents of the United States. These are individuals who enter the United States without being inspected or they were temporarily admitted but their period of stay has since expired. The United States is home for an estimated eleven million illegal immigrants which has caused a major concern to the political class and the public policy analysts (LeMay, p 1). There has been a dramatic rise in the number of illegal immigration into the US since the 70s and this has been attributed to the termination of the Bracero Policy in mid 60s. The Bracero Policy was referred to as the guest-worker program that allowed the American companies to employ Mexicans temporarily for nine months every year in order to address the labor shortages during the 1940s. This program ended in 1964 to pave way to the Immigration Act of 1965 (LeMay, p 4). This program set forth the beginning of a trend that has been persistent for years as much of the illegal immigrants are from Mexico or rather uses the Mexican border with the US to gain entry to the United States (Bracey, p 118). Conclusion: Migration is a phenomenon that shall continue to impact on human population everywhere in the world. Though migration might be disastrous to the economy especially if left uncontrolled, it is inhumane to lock out people who would want to exploit their potential elsewhere in a legally defined manner. Every year starting from the 16th century to the present, many individuals have continued to find their way into the United States as immigrants. These individuals comes with a different culture that later becomes assimilated to American way of life creating the diversity that is the major strength of the United States. Immigration is therefore a plausible phenomenon in the United States that is supposed to be guided and encouraged by law as it contributes to making America what it is today. Legal immigration is a welcome move that is destined to continue enriching the American culture making it unique on the international arena. Work Cited: Batalova, Jeanne. Spotlight on Legal Immigration to the United States. 2009. Retrieved on 11th May 2010 from; http://www. migrationinformation. org/Feature/display. cfm? id=730. Bracey, Gerald, W. The Research Impact of Immigration. Phi Delta Kappan, Vol. 80. 1999. pp 115-125. Huspek, Michael. Production of State, Capital, and Citizenry: The Case of Operation Gatekeeper. Social Justice, Vol. 28. 2001. pp 160-165 LeMay, Michael, C. Illegal immigration: a reference handbook. 2007. Santa Barbara, Calif. : ABC-CLIO.

Jacques ‐ Joseph Tissot s Waiting For The Train - 1842 Words

This essay will argue that Jacques†Joseph Tissot (later James Tissot) depicts modern life through Waiting for the Train (Willesden Junction) (1871-1873, Dunedin Public Art Gallery) by painting the interaction of a young middle-class woman and the modern environment of a London train station. Tissot (1836-1902) was a French Realist who broke away from the traditions of religious and classical painting through the style of rigorous naturalism which was common in the nineteenth century. He paints life as it is in the modern era, depicting the social and cultural norms of the time. The social and cultural norms of the nineteenth century are seen in Tissot s Waiting for the Train (Willesden Junction) where the finely dressed upper-middle class mingle, waiting for the train at a London Station. During this essay I will make the conclusion that Tissot depicts modern life through the formal elements of Waiting for the Train (Willesden Junction) which include composition, colour, line, texture, scale, proportion, balance, contrast, and rhythm. I will then go on to make a stylistic analysis explaining how Waiting for the Train (Willesden Junction) fits into the stylistic category of Modernism and then the more specific category of Realism. Finally, I will analyse how Tissot depicts modern life by discussing elements of influence including the writings of Charles Baudelaire and the artwork of Édouard Manet. In James Tissot s work, Waiting for the Train (Willesden Junction) the