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Estimation method for mobile points of software reliability growth model

A growth model and moving point technology, applied in the field of software reliability model research, can solve problems such as inaccurate moving point estimation methods and software failure data not obeying the same distribution, so as to achieve accurate number of moving points, small position deviation, and preliminary judgment accurate effect

Active Publication Date: 2013-10-09
HARBIN ENG UNIV
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Problems solved by technology

[0013] Considering the problem that software failure data do not obey the same distribution, the present invention proposes a method for estimating the moving point of the software reliability growth model to solve the problem of inaccurate estimation of the moving point in the existing software reliability growth model based on the moving point

Method used

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  • Estimation method for mobile points of software reliability growth model
  • Estimation method for mobile points of software reliability growth model
  • Estimation method for mobile points of software reliability growth model

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Embodiment

[0051] A moving point estimation method for software reliability growth model, the process is as follows figure 1 shown, including the following steps:

[0052] Step 1. Draw a quality control chart according to the actual failure data of the software system.

[0053] Draw quality control charts based on known software system failure data;

[0054] In this embodiment, the existing software system failure data are shown in Table 1, (reference: "A method for software reliability analysis and prediction application to the TROPICO-R switching system" published by K. Kanoun in 1991), Table 1 Lists the cumulative number of failures (Cumulative Number of Failures, CNF) found in 81 weeks (Week).

[0055] Table 1 System failure data

[0056]

[0057]

[0058] The quality control chart described is a common method of quantifying process behavior through statistical analysis.

[0059] Traditional quality control charts have a center line with upper and lower control lines on eit...

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Abstract

The invention discloses an estimation method for mobile points of a software reliability growth model. The estimation method comprises the first step of drawing a quality control chart according to software system actual failure data, the second step of obtaining initial mobile points according to the quality control chart and a mobile point judging criterion, and the third step of obtaining the accurate positions of the mobile points by using a gradual adjustment method. According to the estimation method for the mobile points of the software reliability growth model, the mobile point judging criterion is provided, the preliminary judgment of the mobile points are more accurate, the number, obtained in an estimated mode, of the mobile points is accurate, and positional deviation is small. The estimation method for the mobile points of the software reliability growth model is a new mobile point estimation method, and the problem that the position estimation of the mobile points is not accurate is solved by using the gradual adjustment method on the basis that the number and the positions of the initial mobile points are obtained by using the quality control chart.

Description

technical field [0001] The invention belongs to the field of software reliability model research. Aiming at the problem of inaccurate estimation of the moving point in the software reliability growth model based on the moving point, a new method for estimating the moving point of the software reliability growth model is proposed. Background technique [0002] With the expansion of software application fields and the improvement of functional requirements, the scale of software systems is increasing day by day, and the proportion of functions realized by software in computer systems is increasing rapidly. The reliability of software has become one of the focuses of people's attention. How to accurately measure and predict the reliability of software systems is a hot spot in the field of software reliability research. The software reliability growth model is the main method to evaluate and predict software reliability, and is the core and key to carry out related research. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/36
Inventor 高峰万程程常帅赵玉新吴田孟斌
Owner HARBIN ENG UNIV
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