Weighting

The numerical value assigned to each evaluation criterion that determines its relative importance in the overall scoring of procurement bids, typically expressed as percentages totalling 100%.

How it works

Weighting assigns numerical values to different evaluation criteria to reflect their relative importance in the procurement decision. Each criterion receives a percentage weighting that, when combined with all other criteria, totals 100%. For example, a procurement might weight technical quality at 60%, price at 30%, and social value at 10%.

The weighting multiplies the score achieved for each criterion to produce a weighted score. A supplier scoring 80% on technical quality (weighted at 60%) would receive 48 points (80% × 60%) towards their total evaluation score. This mathematical approach ensures systematic, transparent comparison between competing bids.

Why it matters

Weighting prevents any single criterion from dominating the evaluation process inappropriately. Under the Public Contracts Regulations 2015, contracting authorities must establish clear, non-discriminatory award criteria that reflect the relative importance of different aspects of the requirement.

Proper weighting supports the most economically advantageous tender (MEAT) approach by balancing quality, price, and other relevant factors according to the authority's priorities. It also provides legal defensibility by demonstrating that evaluation decisions followed a predetermined, objective methodology rather than subjective preference.

Weightings must be published in tender documents to ensure transparency and enable suppliers to tailor their bids accordingly. Suppliers can focus their efforts on criteria carrying higher weightings whilst ensuring they meet minimum requirements across all areas. This transparency reduces the risk of legal challenge and supports fair competition in public procurement.