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A message sequence chart (or MSC) is an interaction diagram from the SDL family standardized by the International Telecommunication Union. The purpose of recommending MSC (Message Sequence Chart) is to provide a trace language for the specification and description of the communication behaviour of system components and their environment by means of message interchange. Since in MSCs the communication behaviour is presented in a very intuitive and transparent manner, particularly in the graphical representation, the MSC language is easy to learn, use and interpret. In connection with other languages it can be used to support methodologies for system specification, design, simulation, testing, and documentation. ==History== The first version of the MSC standard was released in March 12, 1993. The 1996 version added references, ordering and inlining expressions concepts, and introduced HMSC〔(【引用サイトリンク】 title=HMSC )〕 (High-level Message Sequence Charts), which are the way of expressing a sequence of MSCs. The MSC 2000 version added object orientation, refined the use of data and time in diagrams, and added the concept of remote method calls.〔(【引用サイトリンク】 title=What is new in MSC 2000 relative to MSC 96. )〕 Latest version has been published in February 2011. 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「Message sequence chart」の詳細全文を読む スポンサード リンク
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