Deriving Safety Requirements Using Scenarios

13 years 10 months ago
Deriving Safety Requirements Using Scenarios
Elicitation of requirements for safety critical aeroengine control systems is dependent on the capture of core design intent and the systematic derivation of requirements addressing hazardous deviations from that intent. Derivation of these requirements is inextricably linked to the safety assessment process. Conventional civil aerospace practice (as advocated by guidelines such as ARP4754 and ARP4671) promotes the application of Functional Hazard Assessment (FHA) to sets of statements of functional intent. Systematic hazard analysis of scenario-based requirements representations is less well understood. This paper discusses the principles and problems of hazard analysis and proposes an approach to conducting hazard analysis on use case requirements representations. Using the approach, it is possible to justifiably derive hazard-mitigation use cases as first class requirements from systematic hazard analysis of core design intent scenarios. An industrial example is used to illustrat...
Karen Allenby, Tim Kelly
Added 30 Jul 2010
Updated 30 Jul 2010
Type Conference
Year 2001
Where RE
Authors Karen Allenby, Tim Kelly
Comments (0)