The intent of this pattern is to provide a top level decomposition for the safety argument of a system. In particular, the pattern provides the context for a software safety argument constructed from the Software Safety Pattern Catalogue. The focus for the argument is the identification of hazards and the assessment of the associated risks.
Authors: Rob Weaver, John McDermic, Tim Kelly
Last Modified: 20/4/2004
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This pattern identifies the three main claims which must be satisfied to show system safety; Valid Safety Requirements, Acceptable Levels of Risks, and Traceability of Safety  requirements and Safety Evidence. The pattern provides a suitable context and approach for developing a software safety argument.
