There are two basic ways to implement a Six Sigma process. DMAIC is used to improve an existing process and DMADV is used to create a customer-focused “brand-new” process. Let’s take a look at the basics of each:

DMAIC

DMAIC is a basic methodology to improve an existing processes

• Define the goals of the design activity. What is being designed? Why? It uses a QFD or Analytic Hierarchical Process to assure that the goals are consistent with customer demands and enterprise strategy.
• Measure to define baseline measurements on a current process for future comparison
• Analyze to verify a relationship and causality of factors. What is the relationship? Are there other factors that have not been considered?
• Improve by optimizing the process based upon the results of your analysis
• Control by continuously measuring the process and institute control mechanisms to ensure that variances are corrected before they result in defects

DMADV

DMADV is a basic methodology to develop a new, customer-focused processes. Also known as Design for Six Sigma Quality (DFSS).

• Define the goals of the design activity. What is being designed? Why? It uses a QFD or Analytic Hierarchical Process to assure that the goals are consistent with customer demands and enterprise strategy.
• Measure by using Determine Critical to Stakeholder metrics. Translate customer requirements into project goals.
• Analyze to find and prove relationships between potential root causes and its effects (y=f(x)).
• Design the process to meet customer needs.
• Verify the design performance and its ability to meet customer needs.

Depending on your company’s current status and needs, either one of these methods are sure to make the most of your internal processes. However, the most important factor is not in Six Sigma. It lies primarily in the dedication of the company’s quality improvement initiative by its employees and senior management.