PDSA Cycle

Read through the stages of the Plan, Do, Study, Act Cycle:

The purpose of this phase is to investigate the current situation, fully understand the nature of any problem to be solved, and to develop potential solutions to the problem that will be tested.


The purpose of this phase is to implement an action plan.
Quality Improvement Graphic
This phase involves analyzing the effect of the intervention. Compare the new data to the baseline data to determine whether an improvement was achieved, and whether the measures in the aim statement were met. Pareto charts, histograms, run charts, scatter plots, control charts, and radar charts are all tools that can assist with this analysis.

This phase marks the culmination of the planning, testing, and analysis regarding whether the desired improvement was achieved as articulated in the aim statement, and the purpose is to act upon what has been learned.


"The ABCs of PDSA." (2009). National Association of County and City Officials (NACCHO).