Pls help to decide- When to go for Lean Project and when for Six Sigma Project?

The most commonly accepted approach is - as follows.

1. If the cause and solution of a problem is unknown when you begin working on the problem considering it as a project, Six Sigma (or, in many cases the integrated approach Lean Six Sigma) is used.
   
2. If the cause and solution are known or easy to figure out (through use of some basic techniques like fishbone and pareto or through group engagement methods), Lean is used.
   

In many cases, even if a project does not warrant the use of Six Sigma DMAIC or a DMADV approach, specific Six Sigma techniques or a combination of Lean and Six Sigma techniques are handy. For a continual improvement specialist, there is really no alternative to learning concepts and techniques in both the bodies of knowledge.

This is useful information for me as a beginner.

Thanks VK.

How To Compare Six Sigma, Lean and the Theory of Constraints

 

A framework for choosing what is the best for your organization: First, identify the primary theory. What is the core emphasis of the program or methodology?

This core emphasis is usually a few words or a short phrase:

• Six Sigma is variation reduction, lean’s is waste reduction and TOC is constraint reduction.
• Then identify the relationship between the primary theory and the primary focus of the tools and methodology.
• This relationship indicates how the primary theory manifests itself in tangible results.

 

What I call the primary effect. This is an if/then type of relationship:

• For Six Sigma: If we focus on reducing variation, then we will have more uniform process output.
• For lean: If we focus on waste removal, then flow time will improve.
• For TOC: If we focus on constraints, then throughput volume will improve.

Six Sigma Project:

Focus on VOC(Voice of customer), CTC(Critical to customer), CTQ(Critical to Quality) by aiming the customer first

Lean Project

Focus on Waste elimination and faster delivery to custamer with lean inventory and single peice flow

Hello Rajesh,

 

A couple of Weeks Back in 'Manufacturing' Discussion, I had posted a comparison of Six Sigma Lean and Theory of constrain. Hope that might help you to select the best method for your Six Sigma/ Lean Project.