对象动态模型和对象视图及其应用

在产品建模中,为解决应用面向对象技术必须首先建立和设计与对象相关的许多对象类,然后再构造对象实例这一问题,提出了对象动态模型和对象视图的概念。建立了对象类、对象动态模型和对象视图三者之间的关系。拓展了传统对象定义的内涵,强化了对象的表达能力。并以企业产品资源和产品对象模型为例,定义了企业产品资源面向对象模型。结合产品对象,定义了产品对象动态模型和对象视图,并通过这个实例验证了对象定义拓展的必要性和意义。

Object views and application of dynamic model of objects

Object oriented modeling provides a mechanism for representing information by using models organized around real world objects and concepts. Basic construct of the mechanism is a object, which combines both the data structure and its behavior into a entity. The object has many characteristics, just like the unique identifier, generalization and inheritance, classification and aggregation. But these are not enough to modeling product. The data of product are produced gradually, so that you can not define the object completely. When the design process is ended, the product object is created. In order to cope with this problem, the paper expands the definition of object, partitions the object into dynamic models according to the evolution of object. It also presents the object views of dynamic model to describe the static characteristics of dynamic model of object. Based on the two concepts, the paper discusses the application in product modeling.