Quality is the integrity of features and characteristics of a product or service that bear on its ability to satisfy stated or implied needs.
Some goals of quality programs include:
Fitness for use. (Is the product or service capable of being used?)
Fitness for purpose. (Does the product or service meet its intended purpose?)
Customer satisfaction. (Does the product or service meet the customer's expectations?)
Conformance to the requirements. (Does the product or service conform to the requirements?)