Concepts Tasks Settings Safety Instrumented Function Analysis Contents Introduction to SIF Analysis Creating and Managing SIF Analyses Developing SIF Failure Modes Copying SIF Failure Modes Working with SIF Analyses SIF Templates Safety instrumented function (SIF) analysis is one of the strategy development methodologies available in APM. The safety analysis team studies system-level and related assets to determine loss of containment scenarios, identify risk levels, and identify the safety provisions that protect against, or mitigate, loss of containment.