关键词: 构件 系统设计 多层结构 可复用性 可移植性

Abstract:

The paper adopts the technical ideas of Web Services and compenent-oriented techniques to separate the reusable and component-based application framew ork from the internal professional components, and thus enhances the reusability of the framework. In the paper, a typical system framework is designed, and component management and mutual operations are implemented inside the framework in order to make the system feature good portability , reusability   and maintenability.

Key words: （component, system design, multitier architecture, reusability, portability）