Validation of the Safety System Validation of the safety system's mitigation plan.
- The final step in any safety system changes is validating the safety functions.
- A validation plan is created in the mitigation phase and will be followed to physically test each function to verify it performs as expected.
- The plan must include the injection of faults that ensures both channels in dual channel safety systems are working correctly.
- The result is a validation document that indicates who performed the test, when it was completed, identifies that all steps were followed, and that the system passed each step.
- Validation shows that the safety functions work according to design and there were no mistakes in its integration and installation of the safety related parts of the control system.
Validation is one of the most important steps to ensure that all the upfront work that was done is installed and operating correctly.