PERT (or 'Program/Project Evaluation and Review Technique') is a technique for scheduling and controlling programs. This technique was created in the late 1950s by the U.S. Navy in order to save time during the implementation of Polaris missiles with nuclear warheads. The Polaris Project was executed with 250 suppliers, 9000 subcontractors, 6000 manufacturers and had to be completed within a seven year timeframe.
The aim of this project was to have the fastest possible nuclear missiles that could be launched from submarine dive. The army used the technique of PERT for scheduling tasks and reduced the project duration to four years.
We can put across a more precise definition: PERT is "a method of putting form in order to network multiple tasks, thanks to their reliability and chronology, they contribute to obtaining a finished product" The PERT is often synonymous with managing major and long term projects.The PERT method graphically represents a network of task whose sequence can lead to the achievement of project objectives.
Tags: PERT, Polaris Project, Management of long term projects
[...] The horizontal axis shows the PERT charts divisions of labor in days, weeks, months . While it is possible to draw a PERT chart for the entire project, the usual practice is to separate tasks into small parts making the graph more explanatory. This is very useful in case if the graph should be redrawn for any reason, as a task ignored or evaluated example. The weeks are commonly used as unit of time to complete a task, but any other time unit can be used. [...]
[...] In a second step, the establishment of a PERT diagram will enable the company to identify the path to make the most of innovation over time. Detailed Description In one project, an activity is a task to be performed and an event is a milestone marking the completion of one or more activities. Before you can start a business, all previous activities must be completed. The PERT diagram represents the activities to be performed. To perform a PERT, six steps are required: ¬ Accurately define the project ¬ Define a project manager ¬ Analyze the project by main groups of tasks ¬ Estimate the time required for each task ¬ Search the related costs ¬ Make permanent controls. [...]
[...] The various steps have been prioritized. Between each step we have the time necessary to accomplish the task described. This PERT representation allows us to have an overview of the project from conception until the end of the organization, i.e., in this case, the feast day. Bibliography Website: http://www.transdata.fr/bois/Cours/PERT/PERT.htm http://www.transdata.fr/bois/Cours/PERT/PERT_INTRO.htm http://www.apprendre-en-ligne.net/graphes/pert/index.html http://www.netmba.com/operations/project/pert/ d www.ac-grenoble.fr/ecogest/pe ago / accounting / crspert.htm http://fr.wikipedia.org/wiki/R% C3% A9seau_PERT http://www.stics.be/CetG/Et4/4_2b.htm Works What is PERT?, Jean Lissarague Wiley Publishing, ISBN 2040074481 PERT, management and project scheduling by path method . [...]
[...] We can take a more precise definition: PERT is method of putting in order the form of multiple network tasks, because of their dependence and their chronology, all contributing to obtain a finished product" The PERT method is often synonymous with managing major projects that are for long term. Utility as part of an innovation project This tool is widely used in project management. As we have seen in the definition, PERT allows detailing the tasks to be performed to complete a project. However we also integrate the notion of time. [...]
[...] ¬ Stages: the beginning and end of a task. The steps are usually numbered and represented by a circle. ¬ The dummy jobs: they are represented by a dotted arrow and allow you to specify constraints between certain stages of succession. PERT charts provide information on the tasks, the durations of each task and their dependence on them. Each table begins with an initial node from which the first task starts. If multiple tasks begin at the same time, they leave every task since the start node. [...]
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