DMEDI vs DMAIC Methodology in Six Sigma

Difference between DMEDI and DMAIC Methodology

➤ DMEDI Methodology (Define, Measure, Explore, Develop, Implement):

→ “DMEDI (Define, Measure, Explore, Develop, and Implement) is data and statistic driven creative approach for designing new processes, products, and services.”
→ This roadmap is focused on obtaining significant competitive advantages or breakthrough changes over the current position.
→ DMEDI projects take more resources and time as compare to the DMAIC project.
→ This method is based on data gathering for design a new process or product or improve the design of the existing process or product.

 DMAIC Methodology (Define, Measure, Analyze, Improve, and Control):

→ DMAIC is an analytical, data-driven approach used to eliminate wastes or improve existing processes, products, and services to meet customer’s expectations.
→ DMAIC focuses on incremental improvements like reducing variation and reducing defects.


→ Too often projects fail unnecessarily because the system designed to implement them was not properly organized from the beginning.
→ The Six Sigma DMEDI method can be especially effective in eliminating this type of problem, so we can use this methodology for a new design of process, product, and service.


You can easily show the comparison between DMEDI and DMAIC Methodology in the below picture.

➠ Examples of DMEDI:

→ Design new manufacturing assembly process
→ Re-design infrastructure from gasoline filling   station to an electric charging station
→ Develop new database for storing large data storing

➠ Examples of DMAIC:

→ Reduce manufacturing assembly cycle time
→ Improve vehicle fuel efficiency by 25%
→ Eliminate server crash error

 Five Phases of DMEDI Methodology:

→ The five phases of DMEDI Methodology is explained below.
Five Phases of DMEDI Methodology

➠ 1. Design Phase

→ The design phase of DMEDI methodology is similar to the Define phase of DMAIC Methodology.
→ In this phase, Stakeholders come up with the project scope or we can say that this is the beginning of any project.
→ According to the Six Sigma DMEDI Methodology,  nature, and scope of project, internal and external customers, financial benefits, and business growth is decided in this stage.
→ Without a clear understanding of the project’s scope and an outcome, we can’t successfully run the project.

➠ 2. Measure Phase

→ This phase of DMEDI methodology is different than the DMAIC.
→ Measure phase focusses on obtaining as many clients and stakeholder input as possible.
→ However, the principles of Six Sigma dictate that in order to be truly effective, project management metrics must be quantifiable, understandable and valuable to the customer.
→ The measure phase requires more input as compared to the measure phase of DMAIC.
→ The input may be in Measure phase of DMEDI is,
     ⇢ Existing process definition,
     ⇢ Baseline outputs,
     ⇢ Critical customer requirements (CCR),
     ⇢ Quality function deployment (QFD)

➠ 3. Explore Phase

→ After the Define and Measure phase of DMEDI, the next phase is the Explore phase.
→ The explore phase is different from the Analyze phase of the DMAIC methodology of Six Sigma.
→ This phase focuses on delivering a hypothetical design of the new process.
→ It is related to how the final product will look like.
→ In this phase, the organization or project leader should discover new and innovative ideas to meet the requirements decided in the Define phase.
→ While the Analyze phase of DMAIC focuses on the data of an existing process to identify the defect and root causes.

➠ 4. Develop Phase

→ Develop phase of DMEDI focuses on the best way for the continued development of the product, process or service.
→ At this stage, we must develop a robust plan for achieving goals or objectives.
→ This plan must include all the basic as well advanced requirements related to the project like planning of manpower, designing of all facilities and other physical resources, supplier development, required technology including software and hardware, etc.…
→ All this requirement will have an impact on the budget so, during this stage, it is necessary to compare and monitor all expenses vs achieved goals.

➠ 5. Implement Phase

→ Usually, we can see the result of project completion in the implement phase of DMEDI.
→ Once all the earlier steps in the DMEDI method have been successfully carried out then it is time to implement the planned project.
→ A sample trial run may be relevant in the Implement phase to ensure that each element of the project works as planned.
→ In this stage, the design is validated by trial and testing on a small scale.
→ Then establish appropriate controls on that product or process.
→ Then finally full-scale implementation takes place.

 Benefits of DMEDI Technique

→ By applying this technique, a company can greatly improve productivity as well as cut down on unnecessary costs.
→ DMEDI is also a great tool to design new products, processes, and services.
→ We can use this tool in any sector of the business world.
→ The best quality performance we can get as compared to other techniques.
→ Customer satisfaction.
→ Increasing your profits and minimizing your defect rates.

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