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Ambiguity Factor |
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Ambiguity Factor |
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Ambiguity Factor
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Ambiguity Factor |
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Ambiguity Factor |
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The ambiguity factor is the average number of iterations required to correct a fault, and is computed as
where
Xi |
probability of fault isolation to Ni replaceable items. X1% < X2% < X3% < X4% < 100%. |
0 < Ni |
Number of items in the ith ambiguity group |
X0 = N0 = 0 |
Ambiguity factor, as computed below |
It is assumed that failure is isolated to an entire group of 0 < Ni < 99 (for i=1..5) parts. The probability that the fault will be isolated for N5 parts is X5 = 100%.
You can use up to 5 groups (i.e., i≤5). The probability of the highest one must be equal to 100%. Furthermore, the inequality
X1% < X2% < X3% < X4% < X5% must hold.
See also the Fault Isolation and Ambiguity paragraph.