The PDCA cycle is a four steps model for carrying out change. It can be used in many different environments like production execution, quality management, project management and even people skills dev. The purpose of practicing PDCA is for closing actions loop and also driving continuous improvement. 

The PDCA procedure:

1. Plan, recognize an opportunity and plan a change.

2. Do, test the change. Carry out a small-scale study (for quick win).

3. Check, review the test, analyze the results, and identify what you've learned and any deviation happened.

4. Act: take action based on what you learned in the study step. If the change did not work, go through the cycle again with a different plan.