FREE Lean Six Sigma Book

Structure of the Lean Six Sigma Book

This Lean Six Sigma book has been written to give both beginners and more experienced readers a clear understanding of the principles and methods behind Lean Six Sigma. The chapters are structured around the DMAIC improvement model, which offers a step-by-step approach to continuous improvement:

1: Define Phase

In the first phase, Define, the focus is on identifying and clearly describing the problem or improvement project. This involves setting project goals, defining the scope, and understanding customer needs and expectations (Voice of the Customer). Tools such as SIPOC diagrams, project charters and Critical to Quality (CTQ) are introduced to make the goals and expectations clear.

2: Measure Phase

In the Measure phase, the current situation is mapped out by collecting data and describing the process. The aim is to quantify the problem and define measurable performance standards. Tools like Value Stream Mapping (VSM), flowcharts and statistical measurement methods help to visualise the process and establish performance indicators. This phase provides a detailed and accurate view of where waste or issues occur.

3: Analyse Phase

In the Analyse phase, the collected data is examined to identify the root causes of problems. Using data analysis and root cause techniques, we look for the underlying factors that negatively affect performance. Tools such as Ishikawa (fishbone) diagrams, the 5 Whys method, Pareto analysis and statistical tools help pinpoint and prioritise causes so that improvement actions can be targeted effectively.

4: Improve Phase

During the Improve phase, solutions are brainstormed, tested, and implemented to eliminate the root causes. Creative techniques are used to come up with effective improvements. Tools such as Kaizen, brainstorming, Design of Experiments (DOE), and 5S are used to develop and optimise solutions.

5: Control Phase

The Control phase ensures that improvements are sustained. This involves setting new standards and creating feedback loops to keep the changes in place. Tools like control charts, Standard Operating Procedures (SOPs), and daily monitoring help prevent setbacks and maintain the new way of working.

The DMAIC model is the backbone of this book, guiding you step by step as you learn and apply Lean Six Sigma. This structured model makes process improvement more focused, measurable, and effective. Each chapter goes deeper into a specific phase of DMAIC, offering practical tools and techniques to help you start and complete any project with confidence.

Part 1: Introduction to Lean Six Sigma

The first part of the book lays the foundation. You’ll get an introduction to Lean Six Sigma and its core principles. Questions like “What is Lean Six Sigma?” and “How does it work?” are answered. We also explain the thinking behind Lean.

Part 2: Quality Management

Lean Six Sigma is closely linked to quality management. In this section, we show how the two disciplines reinforce each other. We explore the 14 principles of quality, and introduce Total Quality Management (TQM), a philosophy of continuous improvement that forms the basis of Lean.

Part 3: The Toyota Production System (TPS)

The roots of Lean can be found in the Toyota Production System. Here we discuss the 4P model (Philosophy, Process, People, Problem Solving) and Toyota’s 14 principles. We also explain the 13 principles of Lean Product Development, showing how Lean can be applied not only in production but also in product development.

Part 4: Cultural Aspects of Lean Six Sigma

Lean is more than just a collection of tools – it’s a way of thinking and working. In this part, we look at the cultural side of Lean and how to encourage a Lean mindset within an organisation. We explain why it’s important to understand the current culture (baseline measurement) and the vital role of the workplace (Gemba).

Part 5: Change Management

Change is a key part of any Lean implementation – but it can be challenging. This section covers how to manage change effectively, using models such as the Change Acceleration Process (CAP) and John Kotter’s 8-step change strategy. We also explain how to deal with resistance during change.

Part 6: The Lean and Six Sigma Improvement Cycle

Lean Six Sigma offers various methods to support continuous improvement. This chapter covers the Plan-Do-Check-Act (PDCA) cycle and DMAIC (Define, Measure, Analyse, Improve, Control) – both essential parts of systematic process improvement.

Part 7: Starting Improvement

This part focuses on the Define phase, where the problem or improvement idea is clearly defined. You’ll learn to use tools like SIPOC diagrams, Voice of the Customer, CTQ, risk analysis, stakeholder analysis and the A3 project charter to build a solid improvement plan.

Part 8: Describing the Process and Identifying Waste

In the Measure phase, we map the current situation. We cover tools like flowcharts, makigami diagrams, swimlane diagrams and Value Stream Mapping (VSM). These tools help identify waste in processes and clarify what truly adds value for the customer – including the difference between business non-value-added and real waste.

Part 9: Collecting Measurement Data

In this section, you’ll learn how to collect data using sampling methods and how to create a measurement plan. We also explain how to set operational goals and conduct measurement system analysis (such as Gage R&R) to ensure your data is reliable.

Part 10: Analysing and Identifying Root Causes

During the Analyse phase, we identify the root causes of issues. You’ll use tools like statistical analysis, hypothesis testing, the 7 basic quality tools, fishbone diagrams, and the 5 Whys. We also cover how to calculate the Sigma level and assess process capability.

Part 11: Developing and Implementing Solutions

In the Improve phase, solutions are created and tested. We look at brainstorming techniques and tools like 5S (Sort, Set in Order, Shine, Standardise, Sustain), Kanban, Kaizen, Just-in-Time (JIT), Jidoka and Design of Experiments. These methods help bring about effective improvements.

Part 12: Sustaining Improvements

In this part – the Control phase – we focus on making improvements stick. We explain how to develop, implement, and monitor standards. Tools like FMEA (Failure Mode and Effects Analysis), SOPs, control charts and daily stand-ups are used to keep improvements in place.

Part 13: Process Improvement in Practice

Lean offers many tools and techniques to improve processes. Based on my experience, I’ve developed a 10-step guide you can follow for any improvement project.

In Conclusion

With this structured approach, the Lean Six Sigma book offers a complete and practical guide for anyone looking to improve processes within their organisation. It’s written in a simple and accessible way, so anyone can start applying the principles of Lean Six Sigma.

Thank you for your interest in Lean Six Sigma. We wish you all the best in applying the tools and techniques in this book. And if you ever want to spar about process improvement, we’re always happy to think along with you.

Anend Harkhoe
info@dmaic.com
+31 6 -57 57 57 31