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Swinging Weights

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Swinging Weights paper

Swing weights are assigned through the supposed increase of each criterion's performance from the worst to the best value. The criterion which represent the highest boost to the total options' performance is assigned a value of 100, all the other criteria are compared respective to this criterion. As put by Belton and Stewart (2002) put it, "if a swing from worst to best on the most highly weighted criterion is assigned a value of 100, what is the relative value of a swing from worst to best on the second ranked criterion"?
Trade-off means that a very low score in one criterion may not be compensated with a very high score in another one. The SAW decision rule described in chapter 2.6.1 allows full tradeoff. The
MAXIMAX decision rule, in which the decision maker selects the option with the maximal scores in the best criterion, and the MAXIMIN rule, by which the option with the best scores in the worst criterion is selected, don’t allow any tradeoff as the decision is made according only to one criterion. Belton, V. and Stewart, J. (2002). Multiple criteria decision analysis: An integrated approach.
Kluwer, Boston, Dodrecht and London. 366pp

MAKING TRADE-OFFS
This complexity may be resolved by making trade-offs between objectives, which entails determining a trade-off or substitution ratio; how much of one can be surrendered in order to achieve another. In practice, this is usually done intuitively when a choice is made, recognising, for example, that option A’s superior performance against objective X clearly outweighs option B being preferred for objective Y. However, comparisons are rarely as simple as this.
Even where the comparison is straightforward, there are considerable advantages in making trade-offs explicitly, within an explicit decision-aiding framework.
The process is structured and

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