摘要： 在已有的角色约束描述方法的基础上,对角色约束进行了分类,提出了一个结构化的角色约束模型SRCM及形式化方法,分析了模型中角色约束间的关联,并介绍了角色约束在建模中的应用实例。使用该结构化的角色约束模型不仅可以更完整地描述角色约束,而且可以使角色约束的描述更加清晰,有助于设计者实现角色的分配及组合,有利于角色模型的实现。

关键词: 角色, 角色模型, 角色约束, 角色分配, 角色组合

Abstract: The role constraints are classified based on existing role constraints description methods and then a structural role constraint model(SRCM) and its formal method are proposed. The relationships between role constraints are discussed and the application of role constraints inmodeling is introduced by a concrete example. Compared with other methods, SRCM can describe the role constraints more completely and clearly,and SRCM can help designer implement the role assignment and role composition, and consequently the role models.

中图分类号: 

• TP309