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An Object-Based Approach to Modelling and Analysis of Failure Properties

Cepin, M., de Lemos, Rogério, Mavko, B., Riddle, S., Saeed, Amer (1997) An Object-Based Approach to Modelling and Analysis of Failure Properties. In: Daniel, P., ed. Proceedings of the 16th International Conference on Computer Safety, Reliability and Security (SAFECOMP'97). . pp. 281-294. Springer-Verlag, Berlin, Germany, York, UK

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In protection systems, when traditional technology is replaced by software, the functionality and complexity of the system is likely to increase. The quantitative evidence normally provided for safety certification of traditional systems cannot be relied upon in software-based systems. Instead there is a need to provide qualitative evidence. As a basis for the required qualitative evidence, we propose an object-based approach that allows modelling of both the application and software domains. From the object class model of a system and a formal specification of the failure properties of its components, we generate a graph of failure propagation over object classes, which is then used to generate a graph in terms of object instances in order to conduct fault tree analysis. The model is validated by comparing the resulting minimal cut sets with those obtained from the fault tree analysis of the original system. The approach is illustrated on a case study based on a protection system from...

Item Type: Conference or workshop item (Paper)
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing > Systems Architecture Group
Depositing User: Mark Wheadon
Date Deposited: 01 Aug 2009 15:01 UTC
Last Modified: 01 Aug 2019 10:33 UTC
Resource URI: (The current URI for this page, for reference purposes)
de Lemos, Rogério:
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