Availability
Availability is in the context of product design, the probability that a product, when used under given conditions, will perform satisfactorily when called upon.
Definitions
According to Juran's Quality Handbook by Defeo (7th edition),
- Availability. In the context of product design, the probability that a product, when used under given conditions, will perform satisfactorily when called upon.
According to the ITIL Foundation 4e by Axelos,
- Availability. The ability of an IT service or other configuration item to perform its agreed function when required.