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What is DMAIC?

What is DMAIC?

The Lean-Six-Sigma projects follow the DMAIC methodology. DMAIC is an abbreviation for DEFINE, MEASURE, ANALYSE, IMPROVE and CONTROL.

DMIAC is a data-driven improvement initiative used for improving, optimising and stabilizing business processes and products.

DMAIC Methodology


Every Lean-Six-Sigma project starts with the Define phase. The purpose of the Define phase in DMAIC is to clearly define the problem statement, the goals, the scope and the high level project timeline. The problem should be linked to the external customer (VOC), the organization (VOB) and to other stakeholders.


In this phase of DMAIC, the gap between the current performance and required performance is measured. The purpose of this phase is to make customer requirements tangible and measurable.


The purpose of the Analyse phase is to identify, validate and determine factors of influence that needs to be adjusted or eliminated.


The purpose of the improve phase is to implement and verify the best solutions to the problem.


The purpose of control phase in DMAIC is to sustain the achieved results. This phase prevents the problems from re-occurring.

Other Topics

What is Six Sigma?
Why does Lean Six Sigma Go Hand in Hand?
Step 1 - Setting the House in Order for Lean Six Sigma Transformation
Step 2 - Creating a Continuous Improvement Culture
Step 3 - Creating Predictable Processes
Step 4 - Six Sigma Implementation - Statistical Process Control
Step 5 - Design for Six Sigma (DfSS)
Short Interval Management
What is DMAIC?
What is Kaizen?