Capability of a product to constrain its operation to within safe parameters or states when encountering operational hazard.
Operational hazard is a hazardous situation, that is circumstance in which people, property or the environment are exposed to unacceptable risk during operation.
- Example 1: A constraint that prevents an airplane from entering a stall condition caused by environmental conditions or pilot error.
- Example 2: A constraint that limits the amount of radiation released by a radiology device to a safe threshold regardless of the operator input.