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There are many known modeling paradigms to describe the dynamics of system in process-oriented, event-based and activity-based view points. Among those modeling paradigms, the activity-based modeling is a natural way to represent the activity paradigm of discrete event simulation and our knowledge about a system. In activity-based modeling,〔http://www.informs-sim.org/wsc97papers/1127.PDF〕 the dynamics of system is represented as an ACD (activity cycle diagram) which is a network model of the logical and temporal relationships among the activities. An ACD is easily implemented with the activity scanning method of simulation execution.〔http://www.thesimguy.com/articles/simModMeth.pdf〕 == Developing the activity cycle diagram == The methodology for constructing an activity cycle diagram consists of the following five steps : #Specify the model domain. #List all entities and their key attributes #For each entity define its individual closed cycle of activity - queue - activity #Merge the individual activity cycles #Verify the logic of the diagram and amend as necessary. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Activity cycle diagram」の詳細全文を読む スポンサード リンク
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