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Quality and Process Methods > Operating Characteristic Curves
Publication date: 07/24/2024

Operating Characteristic Curves

Visualizing the Probability of Detecting Process Shifts

The Operating Characteristic (OC) Curves utility enables you to construct OC curves for control charts and attribute acceptance sampling plans. OC curves are available for XBar, P, NP, C, and U charts. For specified control charts, the OC curve shows the probability of failing to detect a shift of a particular size. In addition, there are OC curves for single and double attribute acceptance sampling plans. For a specified acceptance sampling plan, the OC curve shows how the probability of accepting a lot changes with the lot quality.

Note: The OC curves for control charts are two-sided curves. They are drawn for negative and positive shifts. Often OC curves display only one curve for the absolute shift.

Contents

Example of Operating Characteristic Curves

Launch the Operating Characteristic Curves Platform

The Operating Characteristic Curve Report

OC Curves for Control Charts Report
OC Curves for Acceptance Sampling Options
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