Supplier evaluation and supplier appraisal are terms used in business and refer to the process of evaluating and approving potential suppliers by quantitative assessment. The aim of the process is to ensure a portfolio of best-in-class suppliers is available for use, thus, it can be an effective tool to select suppliers in the awarding stage of an auction. Supplier evaluation can also be applied to current suppliers in order to measure and monitor their performance for the purposes of ensuring contract compliance, reducing costs, mitigating risk and driving continuous improvement.