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project network
A project network is a graph (flow chart) depicting the sequence in which a project's terminal elements are to be completed by showing terminal elements and their dependencies. It is always drawn from left to right to reflect project chronology.〔(【引用サイトリンク】 url=http://www.projectauditors.com/Dictionary2/1.8/index.php/term/,62555d9cae535f6f685560ac5b5d.xhtml )〕
The work breakdown structure or the product breakdown structure show the "part-whole" relations. In contrast, the project network shows the "before-after" relations.
The most popular form of project network is activity on node (AON)(as shown above), the other one is activity on arrow (AOA).
The condition for a valid project network is that it doesn't contain any circular references.
Project dependencies can also be depicted by a predecessor table. Although such a form is very inconvenient for human analysis, project management software often offers such a view for data entry.
An alternative way of showing and analyzing the sequence of project work is the design structure matrix.
== See also ==
* Float (project management)
* Gantt chart
* Project management
* Project planning
* Program Evaluation and Review Technique
* Bar chart
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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