Failure
Failure is any fault, defect, or error that impairs a service or product from meeting the customer needs.
Definitions
According to Juran's Quality Handbook by Defeo (7th edition),
- Failure. Any fault, defect, or error that impairs a service or product from meeting the customer needs.
According to the INCOSE Systems Engineering Handbook (4th edition),
- Failure. The event in which any part of an item does not perform as required by its specification. The failure may occur at a value in excess of the minimum required in the specification, that is, past design limits or beyond the margin of safety.
According to the ITIL Foundation 4e by Axelos,
- Failure. A loss of ability to operate to specification, or to deliver the required output or outcome.