Integration of Lean and Six Sigma
Topic Improvement
Justification
Main savings
Learning curve
Project selection
Project length
Driver
Complexity
Six Sigma reduce variation
Six sigma (3.4DPMO)
cost of poor quality
long
various approaches
2-6months
Data
High
Lean
reduce waste
Speed(velocity)
operating costs
short
value stream mapping
1week-3months
Demand
Moderate
when use the lean production tools
If major business problems fall into the following categories:
There seems to be a lot of waste
There is a need to minimize inventories
There is a need to minimize redundancies
There is a need to improve work flows
There is a need to speed up processes
There are human mistakes
If so, then lean tools should be utilized to:
Eliminate wastes
Increase speeds
Minimize inventories
Simplify processes
Improve flows
Mistake proof processes
when use the SIX Sigma tools
If organizational challenges exhibit the following attributes:
There are quality issues
There is excessive variation
There are complex problemsselection project壁纸
There are challenging root cause identifications
There are numerous technical considerations
In these cases, six sigma tools should be utilized to:
Minimize variation
Apply scientific problem solving
Utilize robust project chartering
Focus on quality issues
Employ technical methodologies

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