Importance Measures Page (Gates Only in System Files)
The Importance Measures page is shown in the Properties window only for gates in System files because results can be calculated only for System files. Reliability importance measures are shown for the gate’s input events only if they have already been calculated. For more information, see Reliability Importance Measure Calculations.
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For a gate in an SAE tree, importance measures are calculated based on the type of probability selected for the system. While average probability is the default, prior to running FTA calculations, you can choose to calculate based on either average probability or worst case probability.
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