Unsourced material may be challenged and removed. However, DMAIC define business plan pdf not exclusive to Six Sigma and can be used as the framework for other improvement applications. DMAIC is an abbreviation of the five improvement steps it comprises: Define, Measure, Analyze, Improve and Control. All of the DMAIC process steps are required and always proceed in the given order.
The purpose of this step is to clearly articulate the business problem, goal, potential resources, project scope and high-level project timeline. This information is typically captured within project charter document. Write down what you currently know. Seek to clarify facts, set objectives and form the project team. The purpose of this step is to objectively establish current baselines as the basis for improvement.
This is a data collection step, the purpose of which is to establish process performance baselines. Measure phase will be compared to the performance metric at the conclusion of the project to determine objectively whether significant improvement has been made. The team decides on what should be measured and how to measure it. It is usual for teams to invest a lot of effort into assessing the suitability of the proposed measurement systems. The purpose of this step is to identify, validate and select root cause for elimination.
The top 3-4 potential root causes are selected using multi-voting or other consensus tool for further validation. A data collection plan is created and data are collected to establish the relative contribution of each root causes to the project metric, Y. This process is repeated until “valid” root causes can be identified. Within Six Sigma, often complex analysis tools are used. However, it is acceptable to use basic tools if these are appropriate. Data are analyzed to understand the magnitude of contribution of each root cause, X, to the project metric, Y.
Statistical tests using p-values accompanied by Histograms, Pareto charts, and line plots are often used to do this. Detailed process maps can be created to help pin-point where in the process the root causes reside, and what might be contributing to the occurrence. This depends on the situation. Identify creative solutions to eliminate the key root causes in order to fix and prevent process problems.