Research On Trustworthy Software Composition Architecture And Design Of The Evaluation Tool

With the development of the social information technology and computer applications, software has penetrated into various industries. It plays an increasingly important role. Software brings more and more convenient to people and is accompanied by increasingly frequent failures and huge losses. The trustworthiness of software has become a hot issue in academia and industry.Firstly, this paper generalized the research achievement and concepts associated with trusted software and discussed the parts which need to be improved. Through researching and analyzing on relevant theories, the author brought out the new concepts about the trustworthiness of software including the architecture definition of trusted software. The architecture covers four aspects which describe the compositional characteristics affecting software and has guiding significance.The Research about trusted properties is very hot today. This paper brings out the construction and definition about key properties of trusted software. In addition, the author brings out the space model of trusted properties creatively. By researching deeply about the relationships among the trusted properties, the author tried to find out the characteristics of the relationships to guide the software development.The assessment for trustworthiness of software is a method to judge whether software is credible. This paper focuses on the research about architecture of trusted software and builds assessment model for trustworthiness of software. Combining with the practice, the author refines the assessment factors and brings out the evaluation index system for the trustworthiness of software. Combining with the characters of the assessment model, this paper uses the fuzzy comprehensive evaluation algorithm to introduce how to achieve the final value from the underlying indicators.Based on the above research, the author designed and developed credibility assessment tools based on B/S structure. Using this tool, the user can input credible evidence, calculate the value of index and show the result of the assessment at last.Finally, the author summarized the content of this paper and looked forward about prospects for future research.