Reduce inspection cost by acceptance planning

In few cases where there are number of methods, available to protect the supplier and the customer from poor quality, it so happens that not always these methods suit appropriately. In such instances, inspection is performed on every part received, sold to ensure quality, but 100% inspection might not be possible always, since it is expensive and also time consuming.

Acceptance sampling plan is practical, it explains about the number of units to be sampled from a lot and number of defects that can be allowed in a sample for testing purpose.

Whenever an acceptance sampling plan is created, the worst quality that would  be  accepted  on  a  regular  basis  is  specified (referred  to  as Acceptance  quality  level)  and  the  quality  level  that  would  be  rejected (referred to as RQL).