DMAIC is a Lean Six Sigma methodology that is used in reviewing and analyzing processes to come up with various process improvement tactics. DMAIC is an acronym that stands for the five phases of the approach: Define, Measure, Analyze, Improve and Control.

In the Define stage of dmaic, the project would be officially launched, the main business problem identified, project team established and project activities planned (e.g. project charter and project plan developed). In the Measure stage, the team would document the process, collect data (e.g measuring cycle time) and narrow project focus. In the Analysis stage of the DMAIC, project team is to analyze data, identify root causes (e.g. using Ishikawa diagram) and waste (see 8 wastes). In the Improve phase, one would develop recommendations for process improvement, evaluate and prioritize solutions (e.g. develop an implementation roadmap), and conduct a pilot. In the final stage of the DMAIC method, one would implement, control the process and validate project benefits.