An Attributes-Based Allocation Approach of Software Trustworthy Degrees

Trustworthiness measurement and evaluation of softwares is an important research topic in the field of trustworthy softwares. The existing metric model for software trustworthiness can determine trustworthy degree of a software with given trustworthy degrees of attributes. In this paper, we focus on the reverse of measurement approach, which determines trustworthy degrees of attributes with given trustworthy degree of a software. We introduce an approach to describe the allocation of trustworthy degrees of softwares, and present an allocation model and an attributes-based allocation algorithm. The allocation approach are applied to high-speed reentry aircraft softwares. With the allocation results, it is shown that our approach is effective and practical in guiding and controlling software trustworthiness.