EVS-EN 61508-6:2003

This part of standard series contains information and guidelines on parts 2 and 3, and gives a brief overview of the requirements and sets out the functional steps in their application. It gives an example technique for calculating the probabilities of failure, gives a worked example of calculating diagnostic coverage, gives a methodology for quantifying the effect of hardware-related common cause failures on the probability of failure, and gives worked examples of the application of the software safety integrity.