An individual or group of individuals who are not part of the development unit. Joint acquirer-supplier reviews are frequently chaired and conducted by the customer/acquirer organization, and are usually presented by the software developer. Joint acquirer-supplier reviews consist of a document review process and a final meeting (review). Review material is presented by the supplier to the reviewers (normal the acquirer) 10-20 days prior to the review meeting. The review is not closed out until all action items are resolved (perhaps 30 days after the review meeting).