开发软件设计模型 visual studio UML

 

 http://www.ibm.com/developerworks/cn/rational/rationaledge/content/feb05/bell/

 

http://msdn.microsoft.com/zh-cn/library/dd409436.aspx

 

 

UML Sequence Diagrams: Guidelines

http://msdn.microsoft.com/en-us/library/dd409389.aspx