Software reliability assessment method and device based on hybrid testing

Abstract

The invention discloses a reliability assessment method and device based on hybrid testing, belonging to the field of software reliability engineering. The method comprises the steps of: obtaining a defect failure rate distribution function and a density function through determining defect failure rate distribution of tested software; determining the density function of an order defect failure rate, an order defect failure rate expected value and a software failure rate expected value according to the order statistics; and hybrid-testing the tested software, and determining a distribution parameter according to a hybrid test result data. The invention overcomes the defects of more testing examples, neglecting of internal information, long testing time, large resource consumption and the like of the traditional reliability test by fully utilizing and combining the advantages of run tests and pertinence tests, thereby shortening the time of the software reliability tests, increasing thesoftware defect exposing speed and the progress of the software reliability tests, and greatly reducing the test cost and the resource consumption.

Description

technical field [0001] The present invention relates to the field of software reliability engineering, in particular to the field of software reliability testing and evaluation, in particular to a software reliability evaluation method and device based on mixed testing. Background technique [0002] As an important means of evaluating software quality and reliability, software reliability evaluation technology is becoming one of the main research directions of software reliability engineering at home and abroad. In order to meet users' requirements for software reliability, evaluate software reliability level and verify whether software products meet reliability requirements, software reliability testing is an effective way. It is a type of random testing whose main feature is to test the software according to the way users actually use the software. On the one hand, it inherits the idea of ​​software testing, on the other hand, it has its own characteristics, especially th...

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Problems solved by technology

[0005] In order to solve the problem of low efficiency of software reliability testing in the prior art, the present invention provides a software reliability evaluation method based on hybrid testing and its device. The method is based on the combination of targeted testing and operational testing Combined with the theory of order statistics, a software reliability order statistics model based on hybrid testing is proposed, which makes full use of the test data of targeted testing and operational testing, and gives software reliability evaluation , so as to speed up the software reliability testing process and improve the efficiency of software reliability testing

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