Different Quality Control Approaches

In my earlier post, I had listed the common traits of Six Sigma Methodologies DMAIC and DMADV. Now let’s look at the differences between both.

  • DMAIC measures processes to determine current performance while DMADV measures and determines customer needs, expectations and specifications.
  • DMAIC analyzes and determines the root cause of the defects or problems while DMADV analyzes the process options that will satisfy customer requirements.
  • DMAIC improves performance by removing the defects while DMDAV designs and outlines the process that will help in meeting customer needs.
  • DMAIC attempts to control future performance while DMADV checks to see if the designed process has the ability to meet customer needs.