Six Sigma Green Belt training focuses mainly on DMAIC, which is a Six Sigma framework that is specifically designed to improve existing processes. What happens if a process must be completely redesigned to bring about improvement? It is not something that is often covered in Six Sigma training. However, DMADV is another Six Sigma approach. This applies to situations when a process needs to be re-designed to bring about improvement. What is the difference between these Six Sigma methods?
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What does DMADV stand for?
DMAIC stands to Define, Measure Analyze and Improve, Control. DMADV is another improvement framework. The first three letters of DMAIC are the same as DMAIC and stand respectively for Define, Measure, Analyze and Control. The last two letters, however, stand for Design and Verify.
The DMADV framework
The DMADV framework consists of four phases.
Define customer needs and goals for the product, process, or service
Measure and match performance to customer needs
Analyze and evaluate the design of the process, product, or service
Create and implement the necessary new processes to create the new product, process or service.
Verify the results and maintain performance

DMAIC frameworks and DMADV frameworks are fundamentally different. DMAIC is used when you want to improve or develop a process that is already in existence.
The DMADV (Define, Measure- Analyze–Design-Verify) method aims at redesigning a problem process or product. The first three steps of DMAIC are followed. Then, the approach deviates in the final two-steps and introduces the Design /Re-design and Validate steps to make the necessary improvements. This approach prevents problems by using quality design concepts.
Let’s take a closer look at the various stages of DMADV framework.

Design
The first phase identifies the project’s purpose. This stage is crucial for both the organization as well as its stakeholders. Once the goals are established, a clear scope and strategy must be created for the project. This will ensure that the organization and its customers are satisfied.
Measure
The second step in DMADV’s Measure is the next. This step measures the quality factors. It is important to establish the requirements for the metrics. To provide useful answers, the metrics must be designed in a way that provides useful information. It must evaluate quality, risk, process ability, and product capability, among other things.
Analyze
Several actions are required during the Analyze phase. These include developing design options, determining the optimal combination requirements to achieve a value within given constraints, conceptual designs and identifying the best components. Then, designing the best design. This is where the total lifecycle cost of a design is calculated. During the analyze phase, we need to ask ourselves: What is the best design that will help achieve our goals?
Develop
The fourth stage of DMADV is a detailed and high-level design for the design that was chosen in the previous phase. After each element of the design has been assigned a priority, a high-level design will be developed. Once a high-level design is obtained, a prototype will be created. Any errors that may occur can then be identified and the process design can be modified to avoid them.
Verify
Now it’s time for the team, in the final phase of DMADV to validate whether the design is acceptable. Can the design be used in real life? Both pilot studies and production-scale studies will be required. It is important to e