A request for proposal is a document a business issues to invite vendors to propose solutions and pricing for a defined need. It standardizes comparison across vendors. Its weakness is that it tends to compare providers on stated requirements rather than on who will actually produce the best outcome.

An RFP makes vendors comparable on paper, which is useful, and it also rewards whoever writes proposals best rather than whoever delivers best. If you run one, judge responses on how well they diagnose your actual problem, not on completeness of the response. The vendor who challenges your brief is often more valuable than the one who answers it perfectly.

Example:

A response that reframes the problem you described, and explains why, usually signals more capability than one that simply answers every question as written.

What is the limitation of an RFP?

It compares vendors on stated requirements and proposal quality, which rewards good proposal writing rather than the ability to deliver the best outcome.

How should RFP responses be judged?

On how well the vendor diagnoses the real problem. A response that constructively challenges the brief often signals more capability than one that answers it literally.