> You are allowed to specify absolute requirements in addition to sorting criteria. For example, you can say, worth more than some price, "the contractor shall

> You are allowed to specify absolute requirements in addition to sorting criteria. For example, you can say, worth more than some price, "the contractor shall have at least n years of experiene". Exactly these are being used to pick a specific vendor. "Must have at least N people certified to do X for at least Y years", with "must have turnover of X for the last Y years" and few more, and you find out, that there is exactly one company qualifying.