i think it's just the usual case diagram
所在版块：求学狮城 发贴时间：2004-09-03 18:31  评分:

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actor A sends a message to system

system forwards the message to actor B

actor B responds
.
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询问一些关于UML、Use Cases的问题 － 御月样 　2004-09-03 10:46 (367 bytes , 528reads )
i think it's just the usual case diagram － SmellsLikeTeenSpirit 　2004-09-03 18:31 (91 bytes , 268reads )
but my problem is a little different － 御月样 　2004-09-03 18:49 (83 bytes , 300reads )
no, it did somthing － MrDJay 　2004-09-04 19:59 (0 bytes , 235reads )
i got it! thanks! － 御月样 　2004-09-03 18:54 (0 bytes , 353reads )