Six Sigma – Improvement Approaches

In Six Sigma program there are multiple approaches that can be applied or used depending on the opportunity/problem being addressed. Below approached are majorly used either in solo or in combination in the six sigma program.

·        Lean

·        PDCA

·        Six Sigma – DMAC

·        Six Sigma – DFSS

Below table shows the criteria that can be used as guidelines for selecting the approach

Below table shows the high level details about the approaches.

Differences between Lean and Six Sigma: There are many similarities between Lean and Six Sigma with respect to the approach/objectives. Below tables shows few differences between the two approaches and suggested technique is a blend of both again depending on the problem/opportunity in hand.