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Reference.org
Weighted sum model
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<p>In <a href="/facts/Decision_theory/TbXcQX0v">decision theory</a>, the weighted sum model (WSM), also called weighted linear combination (WLC) or simple additive weighting (SAW), is the best known and simplest <a href="/facts/Multi-criteria_decision_analysis/IXQLJgBx">multi-criteria decision analysis</a> (MCDA) / <a href="/facts/Multi-criteria_decision_making/IXQLJgBx">multi-criteria decision making</a> method for evaluating a number of alternatives in terms of a number of decision criteria. </p>