A chart that depicts the manufacturer’s and consumer’s risks associated with a sampling plan.

The Operating characteristics (OC) curve displays an acceptance sample proposal's discriminate potential. The OC curve displays the chances of approving a lot versus the proportion of faulty lots. The sample concerns are clear when the OC curve is displayed. Before using a sampling strategy, one must always check the OC curve.

While a sample scheme like the one given above passes the criteria for absolute values of excellent as well as poor qualities, one can't tell how effectively it discriminates among high as well as terrible quantities at intermediate levels.

As a result, sample planning is usually represented by a graph using operating characteristics (OC) curves. These curves, which are different for every n as well as c pairing, easily indicate the possibility of accepting batches with different percentages of defects found.