Introduce the description of the Uml use case, UML is a further modeling of the database design process after the design of the E-R diagram (entity - contact diagram). To understand some illustrations and basic functions in the UML design. First, a brief introduction to the functions of each graph in UML is made.

Filename	Size	Update
消费者用例描述 - 副本.doc	107008	2017-06-01

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