Simple Weight Calculation
SIWEC (Simple Weight Calculation) is a weight subjective multi-criteria decision-making (MCDM) method introduced by Puška, A. Nedeljković, M. Pamučar, D. Božanić, D. Simić, V. in 2024. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.
Key highlights
- Follows a transparent, reproducible computational procedure that can be audited step by step.
- Handles multiple criteria of differing scales and units within a single decision matrix.
Intuition
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How it works
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When to use it
Higher w_j = more important criterion. SIWEC advantage: experts do not need to rank or compare criteria pairwise — direct scoring suffices. The standard deviation σ_i reflects how much each expert differentiates between criteria; experts who rate all criteria equally contribute less weight.
Strengths & limitations
- Follows a transparent, reproducible computational procedure that can be audited step by step.
- Handles multiple criteria of differing scales and units within a single decision matrix.
- Results depend on the chosen normalisation, weights, and parameter settings.
Common pitfalls
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Sources
- 1.Puška, A., Nedeljković, M., Pamučar, D., Božanić, D., Simić, V. (2024). Application of the new simple weight calculation (SIWEC) method in the case study in the sales channels of agricultural products. MethodsX
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Cite this page
ScholarGate. (2026, June 2). SIWEC. ScholarGate. https://scholargate.app/decision-making/siwec