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by Mike Andrews, Verification Technologist, Mentor Graphics
Questa® inFact intelligent testbench automation has allowed many verification teams to achieve their initial coverage goals far more efficiently than would have been possible with traditional constrained random generation, providing an opportunity to expand those coverage goals to ensure a more comprehensive verification of the DUT. This shifts the verification engineer's challenge from efficiently achieving coverage to efficiently and accurately defining the additional covergroups and coverpoints required. This process can be especially difficult when defining cross coverage goals where there are multiple constraints that limit the legal combinations of the variables concerned.
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