“critical path analysis”的概念、定义、翻译、参考文献-科学参考

critical path analysis

Mathematics

Suppose that the vertices of a network represent steps in a process, and the weights on the arcs represent the times that must elapse between steps. Critical path analysis is a method of determining the longest path in the network and hence of finding the least time in which the whole process can be completed.
http://www.mindtools.com/critpath.html An article including an example of critical path analysis.

Statistics

A method of analysis aimed to schedule a set of tasks so that they are all completed in the shortest possible overall time. The difficulty is that the various tasks take different lengths of time to complete and that each task cannot be started until certain prerequisite other tasks have been completed. See also network flow problem.

Chemical Engineering

A management tool used to manage complex projects. It uses all the necessary information about the project as individual activities and their inter-relationship, and the time required to complete them. The mathematical analysis allows the project manager to identify the critical path, which determines those activities that must be completed and the time taken to reach a target date. It was originally devised in the US as a visual planning technique to manage large-scale military projects and has been adapted to other project management applications, in particular engineering and construction projects.

Economics

The system of planning complex processes whose components take time and have to be carried out in a given sequence, by calculating the longest path of planned activities to the end of the project, and the earliest and latest that each activity can start and finish without making the project longer. A critical path is the sequence that has no spare time, or float, in any of the activities, so that a delay in any component along the path would result in the delay of the entire project; this determines the shortest time in which the project can be completed.

单词	critical path analysis
释义	critical path analysis Mathematics Suppose that the vertices of a network represent steps in a process, and the weights on the arcs represent the times that must elapse between steps. Critical path analysis is a method of determining the longest path in the network and hence of finding the least time in which the whole process can be completed. http://www.mindtools.com/critpath.html An article including an example of critical path analysis. Statistics A method of analysis aimed to schedule a set of tasks so that they are all completed in the shortest possible overall time. The difficulty is that the various tasks take different lengths of time to complete and that each task cannot be started until certain prerequisite other tasks have been completed. See also network flow problem. Chemical Engineering A management tool used to manage complex projects. It uses all the necessary information about the project as individual activities and their inter-relationship, and the time required to complete them. The mathematical analysis allows the project manager to identify the critical path, which determines those activities that must be completed and the time taken to reach a target date. It was originally devised in the US as a visual planning technique to manage large-scale military projects and has been adapted to other project management applications, in particular engineering and construction projects. Economics The system of planning complex processes whose components take time and have to be carried out in a given sequence, by calculating the longest path of planned activities to the end of the project, and the earliest and latest that each activity can start and finish without making the project longer. A critical path is the sequence that has no spare time, or float, in any of the activities, so that a delay in any component along the path would result in the delay of the entire project; this determines the shortest time in which the project can be completed.
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