期刊名称：Petroleum-Gas University of Ploiesti Bulletin : Economic Sciences Series
印刷版ISSN：2284-8576
电子版ISSN：2247-8582
出版年度：2006
期号：4
页码：41-56
出版社：Petroleum-Gas University of Ploiesti
摘要：UML allows the construction of more models of the same system. This paper aims to present one of thesemodels, practically the first that we have to construct: the use case diagram. This model is based on theuser's (client's) requirements presented in the application specifications or on the functions of the studiedsystem
关键词：actor; system; use case; the use cases diagram; inclusion; extension; generalization; frames
