The Time to Isolate calculation represents the test time associated with detecting and isolating a failure to a given fault group. (Note: eXpress converts all test times to minutes.)
Calculation
For a given isolated fault group, the Time to Isolate is calculated by summing the test times associated with each test performed in the process of isolating that group:
where
FGx
=
the xth isolated fault group
Tx
=
the number of tests needed to detect and isolate a failure to FGx
TestTimei
=
the time attribute Test limit for the ith test used to isolate FGx
