基于三层结构模型的类模型分析

类的构造是面向对象系统分析的难点,类的构造合理与否很大程度上决定了系统的成败.因此,在面向对象系统分析和设计过程中,类模型的分析是复杂的、重要的且容易重复劳动.为了降低设计过程的复杂性,减少重复性劳动,高效率且高质量地完成系统建模与设计,提出一种基于层次结构模型的类模型分析方法,并阐述了这种方法的机理;结合“移动学习系统的学生选课子系统”的开发实例,深入探讨了从类模型到层次结构模型的映射过程.

Analysis of class model based on three-tier architecture model

The construction of classes is the difficulty of object-oriented system, so whether the structure of class model is reasonable or not determines whether the system will be successful. In order to reduce the complexity of the designing process, the repetitive labor and complete modeling system efficiently, an class model analysis method based on layer architecture model is presented and its principle is illustrated. Combined with an project ＂student＇s course-selection sub-system of mobile learning system＂, the mapping process from class model to layer architecture model is discussed carefully.