Combined Compromise Solution
COCOSO (Combined Compromise Solution) is a ranking multi-criteria decision-making (MCDM) method introduced by Yazdani, M., Zarate, P., Zavadskas, E. K., Turskis, Z. in 2019. 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
k_i > 0. Higher k_i means better. COCOSO combines three appraisal strategies (k_ia: proportional total, k_ib: ratio to minimum, k_ic: weighted λ-compromise) into a geometric-arithmetic mean. The three strategies check robustness — if all three agree, the ranking is stable.
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.
- Assumes full compensation — a strong score on one criterion can offset a weak score on another.
Common pitfalls
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Sources
- 1.Yazdani, M., Zarate, P., Zavadskas, E. K., Turskis, Z. (2019). A combined compromise solution (COCOSO) method for multi-criteria decision-making problems. Management Decision
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Cite this page
ScholarGate. (2026, June 2). COCOSO. ScholarGate. https://scholargate.app/decision-making/cocoso