Hazard analysis
There is normally one FTA diagram per identified hazard, although that FTA can be decomposed into multiple FTA diagrams (although the Cameo profile lacks the transfer operator from the FTA standard, there are other means to accomplish this decomposition). A system, however, normally has multiple hazards. These are summarized into a hazard analysis. A hazard analysis summarizes the hazard-relevant metadata, including the hazard name, description, severity, likelihood, risk, tolerance time, and possibly, related safety-relevant requirements, and design elements.
It should be noted that safety analysis is a rich and deep topic, the details of which are beyond the scope of this book. In this recipe, we will provide a simple FTA-based approach for performing safety analysis.
Purpose
The purpose of this recipe is to create a set of safety-relevant requirements for the system under development by analyzing safety needs.
Inputs and preconditions
A use...
