Modeling Object Behavior with Roles
نویسندگان
چکیده
Role semantics is an essential issue within the field of behavioral specifications. This includes the abstract specification of the conditions under which entities play and discard roles. This paper advocates that this topic is not well covered either by current Object-Oriented Programming Languages or Object-Oriented Analysis and Design Methods. Their main drawback consists on modeling an entity which plays several roles by means of several objects linked by inheritance or specialization mechanisms. This paper presents the concept of phase. It is used in SOM (Semantic Object Model) to model roles. Moreover, it outlines the languages which are applied to specify the resulting schema. The concept of phase is highly abstract since a phase models a role just as it behaves in the real world. Besides, a phase allows to model with a single concept the semantics of different specialization mechanisms.
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تاریخ انتشار 1993