PDCA ( Plan Do Check Act )

So What is PDCA Cycle ?

1.    Plan: Define the goal and the plan for achieving that goal.

2.    Do/Execute: Depending on the plan strategy decided during the plan stage we do execution accordingly in this phase.

3.    Check: Check/Test to ensure that we are moving according to plan and are getting the desired results.

4.    Act: During the check cycle, if any issues are there, then we take appropriate action accordingly and revise our plan again.

So developers and other stakeholders of the project do the "planning and building," while testers do the check part of the cycle. Therefore, software testing is done in check part of the PDCA cycle.

Or


PDCA is a four step problem solving process. The following are the explanation of each step:
1. P - Plan (Devise your Plan). Recognize an opportunity and plan a change.
2. D – Do (or Execute) the Plan. Implement change and Test the change. Carry out a small-scale study. Testing fit in this stage.
3. C – Check (Check the Results). Review the test, analyze the results and identify what you’ve learned.
4. A - Act (Take the necessary action) Take action based on what results are found: If the change did not work, go through the cycle again with a different plan. If you were successful, incorporate what you learned from the test into wider changes. Use what you learned to plan new improvements, beginning the cycle again.