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SFMEA and SFTA reverse comprehensive analysis assisting method

A technology of comprehensive analysis and impact analysis, which is applied in the auxiliary field of reverse comprehensive analysis of software fault tree analysis, can solve the problems of increasing analysis complexity and difficulty, and achieve the effects of reducing analysis difficulty, clear analysis context, and comprehensive analysis

Inactive Publication Date: 2014-08-06
BEIHANG UNIV
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Problems solved by technology

[0009] The reverse comprehensive analysis of SFMEA and SFTA largely solves the shortcomings of SFMEA and SFTA when they are analyzed separately, but at the same time, the two analysis methods are taken into account, and two analysis ideas are used, which increases the complexity and difficulty of the analysis.

Method used

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  • SFMEA and SFTA reverse comprehensive analysis assisting method
  • SFMEA and SFTA reverse comprehensive analysis assisting method
  • SFMEA and SFTA reverse comprehensive analysis assisting method

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Embodiment Construction

[0033] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0034]The present invention utilizes the functional structure chart, control flow chart and data flow chart of the software to assist the process of fault tree construction, cut set acquisition, important event SFMEA and other processes in the reverse comprehensive analysis of SFMEA and SFTA, and provides a software fault tree The auxiliary method of analysis aims to clarify the analysis structure, provide analysis basis, effectively reduce the difficulty of analysis, improve the speed and quality of analysis, and improve the analysis process. The implementation process of the present invention includes the following two parts: the acquisition and processing of the function structure diagram, the data flow diagram and the control flow diagram; the assistance to the reverse comprehensive analysis of the function structure diagram, the data ...

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Abstract

The invention provides an SFMEA and SFTA reverse comprehensive analysis assisting method, and belongs to the field of software reliability and safety analysis. The method mainly includes assistance in building of a failure tree and assistance in SFMEA by means of a function structure chart, a data flow diagram and a control flow chart. The assistance in building of the failure tree is the main content of the method. The function structure chart, the data flow diagram and the control flow chart are obtained; a top event is determined; the function structure chart, the data flow diagram and the control flow chart are made used of separately or comprehensively to assist in building the failure tree; the SFMEA is assisted in by means of the function structure chart and the data flow diagram. The method is used for assisting in SFMEA and SFTA reverse comprehensive analysis by means of the function structure chart, the data flow diagram and the control flow chart, and can effectively reduce analysis difficulty and make analysis concepts clear and make analysis to be fuller.

Description

technical field [0001] The invention belongs to the field of software reliability and safety analysis, relates to fault tree analysis technology, in particular to a software failure mode and effect analysis (Software Failure Mode and Effects Analysis, referred to as SFMEA) and software fault tree analysis (Software Fault Tree Analysis) , referred to as SFTA) reverse comprehensive analysis to assist the method. Background technique [0002] At present, in the field of software reliability and security analysis, SFMEA and SFTA are two common software reliability analysis methods, and they are supported by related auxiliary tools, which can be realized through some automated tools, which greatly speeds up software reliability analysis. The speed and analysis are more comprehensive, and it has been widely used in engineering. However, due to their respective characteristics, there are inevitable defects when they are analyzed independently, such as the omission of top events, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/36
Inventor 张虹赵金富徐莉莉
Owner BEIHANG UNIV
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