FAQs

What is a “Functional Safety Validation”?

IEC61511-1:2016, 3.2.86 – confirmation by examination and provision of objective evidence that the particular requirements for a specific intended use are fulfilled.

Validation means demonstrating that the Safety Instrumented Functions (SIF)(s) and SIS after installation meet the Safety Requirement Specification (SRS) in all respects. Validation is part of the normal engineering quality process and is a fundamental feedback mechanism. Its purpose is to show that a finished product has been built to meet the specified requirements.

The purpose of validation is to demonstrate the end product works correctly as required. This may be demonstrated during commissioning, if the commissioning tests were planned with traceability to the SRS.Validation never considers FSA but in contrast, FSA must always assess the validation process and results.

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