基于构件模型的应用框架扩展方法研究

框架是实现大粒度软件复用的重要途径，开发人员可通过对框架的扩展和实例化实现应用系统。但现有的框架扩展方法大都可操作性差，仅仅解决了局部扩展的问题。提出基于构件模型的应用框架扩展方法，借鉴面向领域的特征模型的思想，确定了构件模型中构件间的关系及组织方法，对扩展点进行了分类，并用UniCon形式化语言描述了应用框架的扩展方法。通过构件模型简述了应用框架的功能和技术特点，为扩展提供了良好的文档支持。

Study of Application Framework Extension Method Based on Component Model

Framework is an important approach to large-grained software reuse. People can develop application system through extension and instantiation of framework. The methods of the present framework extension only solve the problems of partial extension owing to lack of technical support. This paper proposes the extension method of application framework based on component which uses the principle of domain-oriented feature model, identifies the logic relations of components among component model, classifies hot spots by function, and describes the extension measures using the UniCon language. The method simplifies the process of framework extension, and provides the good document support.