Rolled Throughput Yield

  A rolled throughput yield is a percent that measures the probability that a unit can "roll through"  a process without defects.  The rolled throughput is calculated by determining the throughput yield (first pass yield, first time yield) of each process step and then multiplying those throughput yields (first pass yield, first time yield) by each other in order to obtain the cumulative or "rolling" throughput yield.  This measure takes into account rework and scrap providing an organization with a more accurate assessment of internal waste and or hidden costs.  

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