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Diversity of Safety Arguments in the Validation of a Sounding Rocket Destruction System

Abdala, M.A.D., Lahoz, C.H.N., de Lemos, Rogério (2001) Diversity of Safety Arguments in the Validation of a Sounding Rocket Destruction System. In: International System Safety Conference. . pp. 801-810. System Safety Society, Huntsville, Ala (KAR id:13551)


This work describes an approach for the validation of a software system responsible for the destruction of the sounding rocket VS-40X. The process of validation uses three different techniques ranging from the automatic state exploration to the laborious failure analysis. The purpose of the exercise was to obtain diverse arguments in the provision of evidence that the safety properties of the sounding rocket destruction system are always maintained. The software system is modeled using a co-operative architecture, which contains abstractions for modeling and analyzing the interactions between components. The safety analysis is performed using model checking, a technique that exhaustedly explores the state space to determine whether the system satisfies a safety property. The combination of co-operative architectures and model checking has shown effective when modeling and analyzing the interactive behavior between components. However, caution must be taken over the (false) confidence that can be obtained when employing solely model checking for the safety analysis. In order to compensate this deficiency we have to seek diverse sources of evidence to build trustworthy arguments about the safety of the system. The model checking was substantiated using laborious deductive and inductive analysis techniques.

Item Type: Conference or workshop item (Paper)
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User: Mark Wheadon
Date Deposited: 24 Nov 2008 17:58 UTC
Last Modified: 16 Nov 2021 09:51 UTC
Resource URI: (The current URI for this page, for reference purposes)

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