Definition
Scoring Descriptor
The written definition of a specific mark, such as 'good' or 'excellent'.
A scoring descriptor is the written definition attached to each point on an evaluation scale, describing what a response must demonstrate to achieve that mark. For example, a score of 5 might be defined as 'excellent response, fully meets requirement with clear evidence and added value', while a 1 might mean 'poor response, minimal relevance'.
Typical descriptor language
Descriptors usually escalate through qualitative terms such as unacceptable, poor, acceptable, good, and excellent, often paired with language about evidence, relevance, risk and added value. Some buyers also attach numeric ranges (e.g. 8-10 = excellent) rather than single-point definitions.
- Top band: exceeds requirement, strong evidence, low risk, clear added value
- Mid band: meets requirement, adequate evidence, some risk
- Low band: partially meets requirement, limited or generic evidence
- Zero/fail band: non-compliant, no relevant response, or omitted
Writing directly to the descriptor
The highest-scoring bids explicitly evidence the language of the top descriptor rather than simply answering the question well in general terms. If the descriptor for full marks mentions 'added value' and 'evidence of past performance', the response should contain a clearly labelled added-value element and a specific, named example, not a vague claim.
Generic marketing language rarely maps onto descriptor requirements and tends to score in the middle bands even when it reads well, because evaluators are marking against defined criteria, not overall impression.
Frequently asked questions
- Why did I score a 3 when I thought my answer was excellent?
- Scores are assigned against the specific descriptor wording, not general quality. If the top-band descriptor required named evidence, quantified outcomes, or a specific method and your answer was generic or unsupported, evaluators are obliged to mark it lower regardless of writing quality.
- Should I quote the scoring descriptor language directly in my answer?
- It helps to mirror the descriptor's key concepts (evidence, added value, risk mitigation) explicitly in the response, but copy the substance, not just the words. Evaluators need to see that the concept is actually demonstrated, not just name-checked.
- Are scoring descriptors the same across all UK public sector tenders?
- No. Each buyer or framework can set its own scale and descriptor wording, though many follow similar conventions (0-5 scales with unacceptable-to-excellent bands). Always read the specific descriptors in the ITT rather than assuming a standard format.
Related terms