Project Management using DMAIC: Key Objectives for each stage of DMAIC 
The following are excerpts from Six Sigma Demystified: Second Edition by Paul Keller (McGraw-Hill, © 2011).
Objectives for each stage should be satisfied and approved by project sponsors before the team progresses to the next stage.
Define Stage
  -  Project definition. To articulate the project’s scope, goal, and objectives; its team members 
and sponsors, its schedule, and its deliverables.  
 
 - Top-level process definition. To define its stakeholders, its inputs and outputs, and its 
broad functions.  
 
 - Team formation. To assemble a highly capable team and focus its skills on a common 
understanding of the issues and benefits of the proposed project plans.
 
Measure Stage
  - Process definition at a detailed level to understand the decision points and detailed 
functionality within the process.  
 
 - Metric definition to verify a reliable means of process estimation.  
 
 - Process baseline estimation to clarify the starting point of the project.
 
 - Measurement system analysis to quantify the errors associated with the metric.
 
Analyze Stage
  - Analysis of the value stream, the necessary steps that produce value for the customer.  
 
 - Analysis of the sources of variation.  
 
 - Determination of the process drivers, the little y’s that correlate with the stakeholder 
requirements and significantly influence the process output.
 
Improve Stage
  - New process operating conditions are determined.  
 
 - Failure modes for the new process are investigated and addressed.  
 
 - Benefits associated with the proposed solution are estimated by the team and 
approved by the sponsor.
 
 - Process improvement is implemented and verified.
 
Control Stage
  - The new methods must become standardized in practice.  
 
 - The predicted impact of the improvements, the project deliverables, must be 
continually verified, especially the financial return.  
 
 - Lessons learned should be documented.
 
Learn more about the Lean Six Sigma principles and tools 
for process excellence in Six Sigma 
Demystified (2011, McGraw-Hill) by Paul Keller, 
in his online Lean Six Sigma DMAIC short course ($249), or his 
online Green Belt certification course ($499).