What term describes assurance that a product or service will meet its agreed requirements?

Warranty: is fit for use; how the service is delivered; assurance that a product or service will meet its agreed requirements for availability, capacity, security, continuity

References:-https://www.quia.com/jg/2634480list.html https://itilblues.wordpress.com/2007/12/14/itil-v3-utility-and-warranty-two-sides-of-the-same-coin/