Evaluation is the systematic consideration of the value, quality, importance or worth of something or someone. Procurement processes often require judgements to be made, for example deciding whether to approve a potential supplier, deciding which offer represents best value, or deciding whether to single source or adopt a different strategy. Most procurement decisions are non-programmed which means that they involve unique or novel problems, rather than routine and repeatable situations that are called programmed decisions. This means that the decision-making processes to evaluate alternative options need to be systematic and repeatable, and because of the obligation to demonstrate probity, decision-making also needs to be transparent and recorded. In practice, most procurement processes develop an evaluation plan prior to reaching decisions, and the evaluation process often involves multiple stakeholders, depending upon the value and complexity of the acquisition. See also Evaluation, Tender.