Source Selection Criteria (SSC) can be simple or complex depending on the subject of the acquisition. If FAR Part 15 is used, then a concept called best value can be used; best value simply is an idea that the lowest bidder is not necessarily the winner of a competition – rather, an evaluation of the overall offer based on specified SSCs is accomplished and a source selection decision is accomplished (see below) based on those specified SSCs using a fact-based business judgement of the acquiring activity.