软件柔性的评价

Evalution on software flexibility

为了促进柔性软件的研究和开发,通过对柔性软件特征的分析,从软件的适应范围、适应的代价和反应速率等方面重新定义软件柔性;以此为基础提出了软件柔性的层次度量模型。该模型包括软件的有效适应性、可使用性及成本比率3个侧面,对侧面又进一步细化,分为适应范围、变性范围、易操作性、响应时间、实际成本和基线成本等6个要素;为使度量更客观准确,对每一个要素进行了定义,并提出每个要素的度量的方法,从而保证该模型具有可操作性,易于推广。

With a general purpose ofpromoting the research and development ofthe flexible soflware, the concept ofsoflware flexibility is redefined from the perspectives of its adaption scope, its adaption expense and its response rate based on the analyses of flexible software features. Furthermore, a hierarchical metric model of the software flexibility is proposed in the light of its definition and characteristics. The model consists of three profiles, which are the available adaptability, the practicability and the cost ratio of the software, The profiles further involve six concrete factors, which include the adaption scope, variable scope, ease operability, response rate, actual cost and baseline cost ofthe soflware. To evaluate the flexibility more objectively and accurately, each factor has been defined with its metric methods raised, which makes the model excellent in its operability and easy to popularize.