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Model-Based Hazard Analysis of Undesirable Environmental and Components Interaction
Linköping University, Department of Computer and Information Science. (PELAB (Programming Environment Laboratory))
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesis
Abstract [en]

Identifying the detrimental effect of environmental factors and subsystem interactions are one of themost challenging aspects of early hazard assessment in the design of complex safety critical systems.Therefore, a complete understanding of potential failure effects before the catastrophe happens is a verydifficult task. The thesis proposes a model-based hazard analysis procedure for early identification ofpotential safety issues caused by unexpected environmental factors and subsystem interactions within acomplex safety critical system. The proposed methodology maps hazard and vulnerability modes tospecific components in the system and analyzes the hazard propagation paths for risk control andprotection strategies. The main advantage of the proposed method is the ability to provide the designerswith means to use low-fidelity, high level models to identify hazardous interactions. Using thistechnique, designers can examine the collective impacts of environmental and subsystem risks onoverall system during early stages of design and develop a hazard mitigation strategy.

Place, publisher, year, edition, pages
2011. , 72 p.
Keyword [en]
Hazard and vulnerability analysis; Conceptual modelling; environmental and subsystem interaction risks; Fail-free component design; Risk-based design.
National Category
Computer Systems
URN: urn:nbn:se:liu:diva-70988ISRN: LIU-IDA/LITH-EX-A—11/037—SE.OAI: diva2:443371
Subject / course
Computer and information science at the Institute of Technology
2011-09-23, Donald Knuth, Linkoping University, Linkoping, 13:15 (English)
Available from: 2011-09-25 Created: 2011-09-24 Last updated: 2011-09-25Bibliographically approved

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