Lean six sigma process improvement tools and techniques by donna summers chapter 09

Chapter 9
Problem-Solving Using Define,
Measure, Analyze, Improve,
Control

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• If you don’t know where you are going,
you will probably end up somewhere else.
– Laurence J. Peters
• Author and business theorist

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Dr. Deming’s Plan-Do-Study-Act Cycle

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Six Sigma projects have five phases:
– Define
– Measure
– Analyze
– Improve
– Control

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

(note similarity to PDSA)

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Define
– Identify the problem/project
– Define the requirements
– Establish the goals to be achieved

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Measure
– Gather information about the current process
• Define and measure key process steps and inputs

– Refine the problem statement and goals

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Analyze
– Identify potential root causes of the problem
– Validate the cause and effect relationship
– Identify the vital few root causes

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.

Problem-Solving
• Improve
– Implement solution to address root causes of
problem
– Test solutions
– Measure results

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Control
– Evaluate and monitor improvements
• Make adjustments as needed

– Establish standard procedures

Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving

• Eight essential tools typically used within DMAIC
process
– Process Maps
– Cause and Effect Diagrams
– Failure Modes and Effects Analysis
– Measurement System Analysis
– Process Capability Studies
– Multi-variate studies
– Design of Experiments
– Process Control Plans
Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.


Problem-Solving
• Seven Tools of Quality proposed by Kaoru
Ishikawa
– Flow Chart
– Control Chart
– Check Sheet
– Histogram
– Pareto Diagram
– Cause and Effect Diagram
– Scatter Diagram
Lean Six Sigma: Process Improvement Tools and Techniques
Donna C. Summers

© 2011 Pearson Higher Education,
Upper Saddle River, NJ 07458. • All Rights Reserved.