What is Pugh Matrix?
A Pugh Matrix (also called a Decision Matrix or Concept Selection Matrix) is a structured tool used to evaluate and compare multiple options against a set of criteria. It was developed by Stuart Pugh, a British engineer and design theorist. How it works You set up a grid where: Rows = evaluation criteria (cost, performance, ease of use, etc.) Columns = the options/alternatives being compared One column is designated as the "datum" (baseline/reference) Each option is then scored against the datum for every criterion: Option A (Datum) Option B Option C Cost D + − Performance D + + Ease of use D − + Score 0 +1 +2 Scoring is usually: + = better than the datum − = worse than the datum S or D = same as the datum When to use it Product design and engineering Business decision-making Software architecture choices Vendor/supplier selection Any situation with multiple competing options Key benefits Reduces bias by fo...