A Virtual Testing Method for Software Reliability

Abstract

The invention provides a software reliability virtual test method applied to the field of software reliability tests. The method comprises the steps that test input space is set up; failure input space is set up; random sampling is carried out on the test input space to generate a test input vector; the matching degree of the test input vector and the failure input space is calculated; comparison is carried out according to the calculated matching degree and the set confidence degree to judge whether software fails; failure interval time is determined according to the number of accumulative execution times of all input vectors of failure and the corresponding actual execution time. When the matching degree is calculated, matching of input variable values and matching of input relations among input variables are calculated. According to the method, the possible failure time of failure data in the full life cycle of the software can be obtained in the software reliability tests, work loads of personnel are greatly reduced, the testing time is greatly shortened, and the data basis is provided for software reliability assessment.

Description

technical field [0001] The invention is applied in the field of software reliability test, and in particular relates to a virtual test method for software reliability. Background technique [0002] Software reliability testing refers to the testing of software in order to ensure and verify the reliability requirements of software. Software errors that affect software reliability requirements, improve and enhance software reliability indicators. In fact, the main purpose of software reliability testing is to evaluate software reliability, so software reliability evaluation needs to be considered comprehensively when designing software reliability testing. [0003] As far as the current development trend of the software industry is concerned, especially for military software with large and complex systems, the quantitative evaluation of software reliability has become an important task to ensure software quality. In order to obtain accurate software reliability evaluation re...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the fact that the test period of the software reliability test is very long and it is difficult to collect enough failure data, while the various failure data in the software life cycle are not related to the actual use process or have no failure time record, which limits the reliability of the software. Based on the application of qualitative and quantitative evaluation in actual engineering, a virtual testing method for software reliability is proposed

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