When to use it

Use it when you are pursuing a goal through repeated small improvements rather than one big launch.

How to apply it
  1. Plan by defining the goal, the change you will try and the result you expect.
  2. Do by running the change on a small scale.
  3. Check by comparing actual results with the expected result.
  4. Act by adopting, adjusting or abandoning the change based on what you found.
  5. Start the next cycle with the updated plan.
Tip: Write down the expected result before you start, otherwise the Check stage has nothing to compare against.