Abstract
As the reactions of local components to faults in large systems have implications on overall availability and safety, it would be highly desirable to have a tool that could cope with analysis of complex systems without large penalties on development time and cost. Structural analysis is a theoretic method that aims at offering such possibility. SaTool is a tool for analysis of system structure at a high level of specification. It is a rapid prototype tool albeit with a user friendly graphical user interface (GUI) and is based on Matlab®. The program structure is discussed in this chapter based on capture of the requirements expressed by industrial developers to this type of design program. The chapter focuses on the users' needs during an initial high level design phase and demonstrates a GUI that supports this phase. Ways to present the user with structural information without getting lost in details is discussed and program interface examples show the use of SaTool.
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