基于设计结构矩阵的可信软件非功能需求评估模型

可信软件非功能需求的量化评估是可信软件研究的一个重要领域。依据构件中非功能需求之间的相互关系,结合设计结构矩阵及矩阵变换、运算的方法,提出了非功能需求贡献值的概念,建立了构件和非功能需求关系的相关阵列及具有统一标准和评判尺度的可信软件非功能需求度量模型,并结合该模型构建了一种用来判断软件非功能需求是否符合软件开发者和用户预期的评估决策方法。最后通过一个实例来说明本模型的合理性和有效性。

Evaluation model for non-functional requirements intrustworthy software based on design structure matrix

It is an important field to evaluate non-functional requirements NFRs quantitatively in trustworthy software TS. Based on the interdependent relations of NFRs inside the components, according to the design structure matrix, matrix shift and calculation, this paper presented the relative quantity of NFRs inside components, which helped to build the relational matrix between components and NFRs and to bring a calculation model of NFRs that had unified standard and estimated measure. And based on the model, it produced a decision method which could judge whether the NFRs accord with the anticipation of the software developers and user. At last, this paper demonstrated the rationality and validity of this model through a real case.