The assurance that a productAn artefact that is produced, is quantifiable, and can be ei..., service, or system meets the needs of the customerThe person or group who commissioned the work and will benef... and other identified stakeholders. It often involves acceptanceThe formal process of accepting delivery of a deliverable or... More and suitability with external customers. Contrast with verificationThe evaluation of whether or not a product, service, or syst....