Before revision: In decision theory, the weighted sum model (WSM) is the best known and simplest multi-criteria decision analysis (MCDA) / multi-criteria decision making method for evaluating a number of alternatives in terms of a number of decision criteria.
After revision: , or also called weighted linear combination (WLC) or simple additive weighting (SAW),In decision theory, the weighted sum model (WSM) is the best known and simplest multi-criteria decision analysis (MCDA) / multi-criteria decision making method for evaluating a number of alternatives in terms of a number of decision criteria.