All entries for Thursday 10 January 2013

January 10, 2013

Thoughts on DMAIC and DMADV

DMAIC is an integral component of Six Sigma. It is a systematic, scientific and fact based approach which aims to provide a rigorous and tenacious structure of results-oriented management. While DMAIC's methodology may seem to be thoroughly defined and linear, it is important to understand that the best solutions from DMAIC are derived when there is flexibility in the process, which would thereby eliminate measures that are unproductive. A consistent and monotonous approach may be essential as well, especially in circumstances in which the team members are not very familiar with the specfic tools and methods.

DFSS' DMADV is a fairly expensive, longer-term and resource driven process, which means that its deployment should be done meticulously and with care. It should be used on a few important projects which are particularly aimed at developing new products. It is absolutely vital to note that a DFSS project should not be started without the interaction with the customer, the involvement of the sales department, commitment of top management and preferably a team with Six Sigma training. Primarily, DFSS is for the development of new processes and products. It is a powerful technique, which requires to be led by a trained Black Belt or Master Black Belt.

Similarities between DMAIC and DMADV

Albeit DMAIC and DMADV are designed for different business processes, both the methodologies have some basic similarities. These are listed below:

· Both methodologies aim to reduce the number of defects to less than 3.4 per million opportunities available for such defects to exist.

· The foundation of their basis is to focus on data demanding solution approaches.

· Both methodologies rely on facts and statistical tools for discovering solutions to common problems, pertaining to quality.

· Both DMAIC and DMADV focus on accomplishing the financial and business objectives of an enterprise.

· The requirement of services by Green Belts, Black Belts and Master Black Belts during the implementation stage is fundamental to both methodologies.

· Both methodologies require support from a Champion and Process Owner during the implementation stage.


In contrast to Six Sigma, the Design for Six Sigma methodology does not actually design a new part or process due to the fact that every enterprise constitutes of unique design processes which are tailored to their own products or services. However, it is imperative to note that DFSS can make these processes more robust and feasible. DFSS aims to deliver products and processes that perform at higher quality levels than otherwise possible. In brief, whilst DMAIC can be generally characterized as a find-and-fix methodology, DFSS could be thought of as a preventive one.

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