Six Sigma Methodology - DMAIC & IDOV
Six Sigma is a process oriented methodology designed to improve business performance by improving specific areas of strategic business processes. There are 2 different methodologies available for carrying out improvements in processes or operations.
Improvements can be of two types: improving the existing process or designing a new process altogether. When we have an existing process and we want to improve the process we deploy the DMAIC methodology. While designing a new process or completely revamping the existing process the Design for Six Sigma or IDOV methodology is deployed.
DMAIC v/s DFSS
DMAIC |
DFSS |
Structured and iterative process improvement methodology |
Rigorous approach to designing processes that will exceed customer expectations |
Focus on defect reduction |
Focus on defect prevention |
DMAIC Methodology
Define |
Define the problem. |
Measure |
Identify the statistical measures to monitor the key process. |
Analyse |
Determine the analysis tools and methods to be used. |
Improve |
Improve and Implement. |
Control |
Standardize and document the process and implement the plan. |
DFSS (IDOV) Methodology
Identify |
Develop a team. |
Design |
Identify functional requirements. |
Optimize |
Determine process capability. |
Verify |
Test and validate the design. |