What is tender evaluation?
Tender evaluation is the scoring of supplier bids against criteria published with the invitation to tender. Public procurement regimes require that the published criteria and weightings are the ones actually applied, and that the reasoning can be produced when an unsuccessful bidder asks. A challenge can suspend an award, which gives the record immediate commercial weight.
Also called: Bid evaluation, Tender assessment
Why an unsuccessful bidder is the most motivated reader of all
The reader of a tender evaluation record is a commercial organisation with legal advisers and a direct financial interest in finding a defect. They will compare the published weightings against the scores awarded, and they are entitled to the reasoning. Procurement challenges succeed on process far more often than on judgement, which means an evaluation can reach the right supplier and still be set aside. The exposure is immediate, since a challenge can suspend the award before delivery begins.
- The published criteria are the only criteria that may lawfully be applied.
- Challenges are won on process defects more often than on scoring judgement.
- An award can be suspended while a challenge is heard, which stops delivery.
- Debrief letters have to agree with the recorded scores in every particular.
How tender evaluation works
- Criteria and weightings are published with the invitation and then frozen.
- Mandatory requirements are assessed first as a pass or fail gate.
- Each evaluator scores the remaining criteria independently, citing the passage relied upon.
- Consensus scoring reconciles differences with the discussion minuted against each criterion.
- Totals are applied to the published formula, including any price quality balance.
- Debrief letters are generated from the recorded scores for every bidder.
How tender evaluation is evaluated
Tender evaluation is assessed on whether the published method was the method applied. Examine the following before an award is notified:
- agreement between evaluators per criterion before consensus
- proportion of scores citing a located passage in the bid
- consistency between the published weightings and the formula applied
- traceability from each debrief statement to a recorded score
- time required to produce the full evaluation record on request
Limitations, risks and common failure modes
- Weightings are adjusted after bids arrive, which invalidates the whole exercise.
- Consensus scoring overwrites individual scores and the disagreement vanishes.
- Evaluators see the price before scoring quality, which colours the judgement.
- Debrief letters are drafted by a separate team and contradict the scores.