软件体系结构层次的适应性度量技术研究

Research on Flexibility Metrics in Software Architecture Level

软件适应特定变化的能力对软件开发和维护都具有重要的影响。软件适应性(Software Flexibility)是反映软件适应变化能力的一项重要质量特征。实践说明软件体系结构设计在很大程度上决定了软件的适应性。在软件体系结构层次上量化地度量软件适应性,有助于设计人员改善和比较软件体系结构的设计方案,并可以辅助设计人员评价软件体系结构的质量。本文首先定义了软件适应性的因素-准则-度量模型(FCM模型);然后在此基础上提出了一种利用变化影响图(CIG)对软件适应性进行度量的方法。

The ability of adapting to changes is important in software development and maintenance. Software flexibility is a significant quality feature to reflect the ability of adapting to software changes. In practices, we find that software architecture impacts on the software flexibility. Measuring software flexibility in software architecture level is helping designer to improve and compare software architecture models, and assess the qualities of software architecture. In this paper, a Factor-Criteria-Metric Model is purposed for software flexibility in software architecture level. Then some metrics are developed to measure software flexibility according to the new kind of Change Impacted Graph （CIG）.