Step 2: Define performance measures
Performance measures quantify the degree to which objectives are achieved. They are typically obtained from technical specialists using a facilitated assessment process involving influence diagrams.
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Objective
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Selected Performance Measure
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Required Estimate
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Bring items likely to be used
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Frequency of use
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Number of times item would be used
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Bring items whose use enhances enjoyment
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Benefit per use
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Benefit score:
4 = Major benefit added
3 = Significant benefit added
2 = Moderate benefit added (about
½ that judged “major”)
1 = Minor benefit added
0 = No benefit added
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Avoid bringing heavy items
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Item weight
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Weight in pounds
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Avoid bringing big items
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Item size
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Volume (length x width x height, in inches)
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As illustrated, performance measures can be measurable attributes of the alternatives (like size) or constructed scoring scales. Models are often constructed to predict performance measure values.
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