**Define Stage**- Identify and state the problem. What is the problem you're company is trying to fix?

**Measure Stage**- Validate the practical problem by collecting data. Is it really a problem and can you measure it with data?

**Analyze Stage**- Convert the practical problem to a statistical one, define statistical goal and identify potential statistical solutions. This is the real path to solving the problem.

**Improve Stage**- Confirm and test the Statistical solution. Has the solution you implementing really worked? If so, you should be able to measure the improvement.

**Control Stage**- Convert the statistical solution to a practical solution. How do you keep the new process from reverting back to a broken one?