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
|Structured and iterative process improvement methodology||Rigorous approach to designing processes that will exceed customer expectations|
|Focus on defect reduction||Focus on defect prevention|
|Define||Define the problem.
Define the customer(s) and the requirements.
Define the current capability.
Define the key processes that will have the greatest impact on customer.
|Measure||Identify the statistical measures to monitor the key process.
Set up the data collection plan.
Measure the process
|Analyse||Determine the analysis tools and methods to be used.
Summarize the data measured.
Run the analysis and determine the root causes, effects, etc.
|Improve||Improve and Implement.
Focus on developing process/technology to improve the root cause.
Test the method on sample process and validate the improvement.
|Control||Standardize and document the process and implement the plan.|
Monitor the process and feedback the results back to the process for continuous improvement.
DFSS (IDOV) Methodology
|Identify||Develop a team.
Create team charter.
Perform competitive analysis.
Develop CTQs and formally tie design to VOC.
|Design||Identify functional requirements.
Develop alternative concepts.
Evaluate alternatives and select a best-fit concept.
Deploy CTQs and predict sigma capability.
|Optimize||Determine process capability.
Develop detailed design elements.
|Verify||Test and validate the design.|
Share feedback with manufacturing and sourcing to improve future manufacturing and designs.
- What is Six Sigma ?
- What Six Sigma is Not ?
- Understanding Sigma Levels
- Six Sigma Concepts
- Characteristics of Six Sigma
Authorship/Referencing - About the Author(s)
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