In summary, simulation is of value in connection with DFSS because:
Design problems are discovered sooner.
Shortens development time
Provides better overall quality
Permits early optimization of the design
Build-and-test is supplemented by computer simulations.
Permits lower testing budgets
Shortens development time
Permits evaluation of alternative designs
Minimizes overdesign by evaluating early in cycle
Therefore, with the aid of simulation we are capable of:
Less time spent designing
Less time spent testing
Less time spent changing
Result: Better products ...
in less time...
at a lower cost.
And that is what DFSS is all about.