Weighted Scoring Model
An evaluation methodology that assigns different weights to selection criteria based on their relative importance, allowing procurement teams to objectively compare and rank supplier proposals or bids.
A weighted scoring model is the standard tool for evaluating supplier proposals, tenders, and RFP responses in a structured, defensible way. Each evaluation criterion (price, quality, delivery, experience, sustainability, etc.) is assigned a percentage weight reflecting its importance, and each proposal is scored against every criterion. The weighted scores are summed to produce an overall ranking.
The key to a fair evaluation is setting the weights before receiving proposals — ideally during the needs assessment phase. This prevents bias and ensures the evaluation reflects genuine business priorities rather than post-hoc rationalization. Most organizations use a scale of 1-5 or 1-10 for individual criteria scores.
Example: An RFP for managed print services uses: Price (30%), Service Quality (25%), Environmental Credentials (15%), Implementation Plan (15%), Account Management (15%). Supplier A scores highest on price but lowest on quality, while Supplier B scores highest overall due to strong quality and implementation scores despite being 8% more expensive.