Software credibility comprehensive evaluation method based on improved D-S evidence theory
A technology of comprehensive evaluation and evidence theory, applied in the field of comprehensive evaluation of software credibility of D-S evidence theory, can solve problems such as the degree of credibility
Active Publication Date: 2021-05-11
BEIHANG UNIV
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[0007] In view of this, the present invention provides a method for comprehensive evaluation of software credibility based on the improved D-S evidence theory, which determines whether the software is credible and how to solve the problem of whether the software is credible by using the proof technology of the product combination process, and uses the improved D-S evidence Theory solves the problem of how reliable the software is
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[0066] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.
[0067] refer to figure 1 As shown, an embodiment of the present invention provides a comprehensive evaluation method for software credibility based on the improved D-S evidence theory, including the following steps:
[0068] S1. Build a software credibility proof structure based on GSN expression, and obtain a main frame that only includes goals and solutions.
[0069] The elements of the evidence structure of software cre...
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The invention discloses a software credibility comprehensive evaluation method based on an improved D-S evidence theory. The method comprises the steps: constructing a software credibility proof structure based on GSN expression to obtain a main body frame; constructing a comprehensive evaluation index system, and converting the main body framework into structural elements of each layer in the index system; constructing a credible grade division model for the index system to obtain an identification framework of the D-S evidence theory; calculating a mass function value of the evidence; measuring conflicts among the evidences, and adjusting a mass function value; fusing the evidences to obtain a mass value of the index layer; calculating a mass function value of the current criterion layer; calculating the mass function value of the total target based on the mass function value of the criterion; and calculating a total target score value and a total target reliability interval. According to the method, software credibility is demonstrated according to an evidence method, a credible evidence chain of a final product is systematically established, the conflict condition of evidences can be effectively weakened, the application effect of the D-S evidence theory is improved, and therefore the effectiveness of evaluation is better improved.
Description
technical field [0001] The invention belongs to the technical field of software security, and in particular relates to a comprehensive evaluation method of software reliability based on the improved D-S evidence theory. Background technique [0002] At present, the information infrastructure with communication, storage and computing as the core has penetrated into all levels of political, economic, military, cultural and social life. As the soul of the information infrastructure, software plays a vital role in the information society. . In safety-critical fields such as aerospace, weaponry, transportation, and nuclear energy, a large number of software applications have greatly improved system performance, effectively improving the overall accuracy, flexibility, and rapid response of the system. With the continuous increase of people's demand for software functions, the software system is becoming larger and more difficult to control, so the maintenance of the software is b...
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IPC IPC(8): G06F21/57G06F11/36G06Q10/06G06F17/15
CPCG06F21/577G06F11/3608G06Q10/06393G06F17/15G06F2221/033
Inventor 吴玉美张保国李璇马岳
Owner BEIHANG UNIV