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Embedded software reliability test data generating method based on using probability

A technology of embedded software and test data, applied in the field of automatically generating test data sets required for reliability testing, can solve problems such as no practical method, and achieve the effect of good diversity characteristics

Inactive Publication Date: 2013-07-10
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

In order to make the reliability test results more accurate, it is necessary to generate test data based on the probability of the values ​​of these parameters, and at the same time meet the constraints of the number of test data and specific values. Currently, there is no corresponding practical method in the industry.

Method used

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  • Embedded software reliability test data generating method based on using probability

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 Shown, the Embedded Software Reliability Test Data Generation Method based on the probability of use of the present invention, its steps are:

[0033] (1) Obtain the external parameters of the reliability test;

[0034] The external parameters read in by the software during operation are a key factor for the continuous operation of the software, and inputting various external parameters is also a necessary condition for establishing a complete test case.

[0035] (2), determine the attributes of each external parameter;

[0036] Divide extrinsic parameters into two categories:

[0037] One type is a parameter with a probability of occurrence, which is called a key parameter. The probability of occurrence here refers to the probability that the parameter value takes a certain value or randomly takes a value wit...

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Abstract

The invention discloses an embedded software reliability test data generating method based on using probability. The embedded software reliability test data generating method comprises the following steps: (1), obtaining external parameters for a reliability test; (2), determining attributes of each external parameter; dividing the external parameters into two types, namely parameters with occurrence probability, called as key parameters, and parameters assigned according to values of the key parameters, called as non-key parameters, wherein relevant information of the two types of parameters is input in an interactive way respectively, so that the relevant information is contained in a test case; (3), generating initial test data according to the range and the probability of the parameters; (4), regulating and optimizing the test data; and (5), obtaining a test result. The embedded software reliability test data generating method has the advantages of simple principle, simplicity and convenience for operation, good integrity, wide application range and the like.

Description

technical field [0001] The invention mainly relates to the field of embedded computer software, in particular to a method for automatically generating test data sets required for reliability testing according to the use probability of input parameter values. Background technique [0002] The research on the reliability of embedded systems began in the 1970s, and after the 1990s, people paid attention to a series of reliability problems exposed during the use of embedded software in various high-tech projects. And invested a lot of manpower and material resources for research. Up to now, embedded software reliability has developed to a certain extent in terms of reliability test platform construction, reliability modeling, test case generation method, adequacy and effectiveness of reliability test and so on. [0003] "Reliability testing of embedded software" refers to the testing of software in order to verify or meet software reliability requirements. For the reliability ...

Claims

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Application Information

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IPC IPC(8): G06F11/36
Inventor 董威王戟文艳军刘万伟陈振邦陈立前徐蛟
Owner NAT UNIV OF DEFENSE TECH
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