The Six Sigma DMAIC Guide

Guide me through improving this process using the DMAIC structure.

The process and the problem: [DESCRIBE — DEFECT, VARIATION, WASTE]
What I can measure: [DESCRIBE]

Walk me through:
1. Define — the problem, the goal, and what the customer actually needs
2. Measure — what to measure and how to establish the baseline
3. Analyse — how to find the real root cause with data, not guesses
4. Improve — how to design and test the fix
5. Control — how to hold the gain so it doesn't drift back

Keep it practical for my situation, not a belt-certification lecture, and
flag where I genuinely need data before concluding.