FastScan and FlexTest Reference Manual, V8.6_4
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Set Decision Order Command Dictionary
Set Decision Order
Tools Supported: FastScan
Scope: All modes
Usage
SET DEcision Order -NORandom | -Random
Description
Specifies how the ATPG determines and uses observation points.
The Set Decision Order command specifies whether ATPG makes random
choices when faced with a decision.
Arguments
•-NORandom
A required switch that causes the ATPG to make the easiest choice when faced
with a decision. This is the default upon invocation of the tool.
•-Random
A required switch that causes ATPG to make random decisions when faced
with a choice, rather than choosing the easiest. This causes variation between
patterns, tending to give a more compact vector set at the risk of creating more
ATPG aborts.
Note
You may be able to resolve AU and UO faults by restoring the
(invocation default) full handling of observation points with the
Set Decision Order command and rerunning the ATPG. However,
while this may increase your test coverage, it also increases the run
time.