Details
- Full Name
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Pugh Decision Matrix (also Pugh Controlled Convergence)
- Matrix layout
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Criteria as ROWS, alternatives as COLUMNS
- Reference (baseline)
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One alternative is designated as reference — scored entirely as 0/S
- Relative scoring
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Each alternative rated against the reference: Better (+), Same (S), Worse (−)
- Summary rows
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Σ(+), Σ(−), Σ(S), and Net Score per alternative at bottom of matrix
- Structured evaluation
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Systematic comparison across multiple dimensions
- Team decision-making
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Facilitates group consensus
- Hybrid solutions
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Combine strengths of different alternatives
- Iterative refinement
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Multiple rounds to converge on best solution
- Key Proponent
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Stuart Pugh ("Total Design", 1991)
- Unweighted 3-Point Pugh Matrix
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Original form. Default when no qualifier is given.
- Weighted 3-Point Pugh Matrix
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Criteria carry importance weights. Standard in Six Sigma / QFD contexts.
- Weighted 5-Point Pugh Matrix
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Finer granularity for closely ranked alternatives.
- Pugh Controlled Convergence
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Iterative multi-round process with elimination, hybrid creation, and reference rotation.
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Multiple viable alternatives exist
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Decision criteria are known but trade-offs are unclear
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Team needs to reach consensus
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Architecture or technology selection decisions