Acceptance Criteria (glossary)
The procurement specification, in the context of the overall agreement, should clearly state the criteria by which the acquirer will accept delivery from the supplier. A verification matrix can be used to clarify these criteria. (INCOSE 2010, Section 6.1.15)
INCOSE. 2010a. INCOSE Systems Engineering Handbook, version 3.2. San Diego, CA, USA: International Council on Systems Engineering (INCOSE), INCOSE-TP-2003-002-03.2.
Discussion as to why this is the "consensus" definition for the SEBoK.