At this stage, you will have to specify which criteria is more important then the others and how more (less) important it is. In other words, you will have to assess the relative importance of the criteria.
To do that, you can choose different ways:
- you can rank the criteria, and then specify for instance that price is the most important (rank 1), then space (rank 2), etc.
- you can enter a weight value (e.g. price is 30% important and consumption is only 10% important) as presented in the figure above.
- compare the criteria on different scales and specifiy that the price is 3times more impotant than space, but that space is 2times more important than power ; power which is 4times less important than... etc.
If you decide to specifify the importance of the criteria by their rank, don't forget that the lower the rank of the criteria the more important the criteria. Several criteria may have the same rank.
Compare the criteria on different scales (e.g. 5-level scale) and specifiy how more (less) important is a specific criterion compared to another criterion:
price is two times more important than power ;
price is three times more important than space ;
power is neutral (same importance) than comfort.
For more information about the preference information, click on the following link: More information about the preference parameters.
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