: Establish objectives, identify problems, and design processes to deliver results.

If you are given a list of terms and asked, “Which among below are not the stages of PDCA cycle?” – the best way to answer is to use the . Compare each option to the four canonical words: Plan, Do, Check, Act . Any synonym, variant, or related concept that is not one of these four exact words is not a stage. There is one exception: Deming himself later used “Study” instead of “Check” (calling it PDSA). So “Study” can be considered an acceptable alternative for “Check.” But no other variations are standard.

Example:

How do we sustain these gains, or what should we change in the next planning cycle? Common Impostors: What is NOT a Stage of PDCA?

The production team submitted a report titled:

To understand what is not part of the cycle, we must first deeply understand the four legitimate stages.

While terms like "Analyze" or "Define" are critical in other management frameworks (such as Six Sigma's DMAIC), they are not distinct, named stages in the standard PDCA model.

The Plan-Do-Check-Act (PDCA) cycle is a cornerstone of modern quality management. Organizations worldwide use this iterative four-step model to achieve continuous improvement in their processes, products, and services.