Weigh multiple factors (benefits and costs) and optional groups under the main goal, and/or weigh multiple factors and optional groups under a sub goal. Assigning weights is needed in order to indicate the relative importance of these factors with respect to the main goal or to optional sub goals.
Dialog box options:
Direct Method:
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The user has to specify weight values himself. These user-defined weights are automatically normalized.
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Pairwise Comparison:
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The user goes through all unique pairs and assigns Saaty weights (in words). From these weights, normalized weights are calculated.
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Rank Ordering:
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The user assigns a rank-order to the items. From this rank-order, normalized weights are calculated.
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Tips:
- Weights are always numbers between 0 and 1. Weights cannot be negative.
- For the factors within a group, the sum of the weights of the factors equals 1. When a group only has one child, this child automatically obtains weight 1.
A Weigh dialog box will appear:
- When you are in Multicriteria Analysis mode, and
- when you selected the main goal, or a sub goal, that contains multiple factors in the criteria tree viewer, and
- do one of the following:
- choose Weigh from the Analysis menu in the SMCE window,
- click the Weigh button
in the toolbar of the SMCE window,
- click a criteria with the right mouse button and choose Weigh from the context-sensitive menu,
- press the Enter Key, or
- click the main goal or a sub goal in the criteria tree viewer.
Tips:
- When you use Weigh for the first time, this Weigh dialog box will appear, in which you can choose the Weigh method.
- Also, within one of the three weigh methods dialog boxes, you can choose another weigh method by using the Choose other method button. This Weigh dialog box will appear.
See also:
SMCE window : Weigh - Direct Method
SMCE window : Weigh - Pairwise Comparison
SMCE window : Weigh - Rank Ordering
SMCE window : Weigh methods (additional info)
SMCE window : functionality
SMCE window : toolbar
SMCE window : criteria tree viewer
ILWIS objects : criteria trees