implementation method of a spreadsheet tool supporting an STPA method to analyze UCA

Abstract

The implementation method of the spreadsheet tool for supporting the STPA method to analyze the UCA comprises the following steps that firstly establishing an Eclipse RCP project and achieving a platform framework of the spreadsheet tool; 2, building a spreadsheet system using the model-view-controller model and 3, using a Grid component provided by a Newula Project in an Eclipse community as a bottom layer module of the table, analyzing a specific demand of an unsafe control action according to an STPA method on the basis, and carrying out layer-by-layer packaging. and 4, storing and analyzing the table information by using an extended markup language technology. Compared with the prior art, the method has high portability and platform independence, editing of unsafe control actions can be achieved, the unsafe control actions can be connected with harm, safety analysis personnel can conduct safety analysis work more clearly, and storage and analysis of analysis results are facilitated.

Description

technical field [0001] The invention belongs to the technical field of security analysis of complex systems, and in particular relates to an implementation method of an electronic form tool supporting STPA method analysis UCA. Background technique [0002] Systems-Theoretic Accident Model and Processes (STAMP) was proposed by Nancy G.Leveson of MIT in 2004. STAMP is a new accident causality model based on system theory and extended on the traditional accident model. The traditional event chain-based failure model regards component failure as the cause of the accident, while the STAMP model regards the system as a whole, and the security of the system is determined by the interaction between the various components in the system. [0003] Based on the STAMP accident model, Leveson proposed a specific hazard analysis method - System-Theoretic Process Analysis (STPA). STAMP emphasizes that hazards are caused by unsafe control behaviors, while STPA focuses on how to find out th...

AI Technical Summary

Problems solved by technology

However, the process of analyzing unsafe control actions through guide words can only be done by handwriting or with the help of computer editors.

There is no table control or tool specially for the STPA method to analyze unsafe control actions to help analysts conduct safety analysis, so it is necessary for us to develop a table tool that supports the STPA method to analyze unsafe control actions

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