Overview of Lean principles, Six Sigma philosophy, and process improvement basics.

DEFINE PHASE — FOUNDATIONS & PRACTICAL TOOLS

The measure phase helps you quantify the problem with correct data.

Data types:

Qualitative → categories (nominal, ordinal)

Quantitative → numbers (discrete, continuous)

Check Sheet is the most important tool for Yellow Belts — simple, visual, and used to track defects or issues.

Process mapping helps identify delays, risks, and inconsistency.

Variation is the difference between what is expected vs. what actually happens.

Basic statistics (mean, median, mode) help summarize performance.

Accurate data leads to better root cause analysis in the next phase.

🟩 MODULE 4 SUMMARY

Analyse Phase identifies root causes using data + tools.

Yellow Belts use simple RCA tools like 5 Whys, Fishbone & Pareto.

Improve Phase focuses on small, practical changes.

Lean 8 wastes help identify inefficiencies.

AI supports RCA, analysis, and generating improvement ideas.

In one line:

👉 Analyze finds the cause; Improve fixes it.

🟩 MODULE 5 SUMMARY

The Control Phase ensures solutions stay in place.

Visual tools, SOPs, and standardisation are key to success.

Control charts help monitor stability.

AI makes documentation, monitoring, and reporting much faster.

In one line:

👉 Control keeps the solution alive and sustainable.