First, let’s review the objectives of each DMAIC step.

  • D: Define (Establish project purpose and scope, background on process and customer)
  • M: Measure (Quantify existing process performance)
  • A: Analyze (Determine ways to eliminate or reduce the gap between current performance and project goals)
  • I: Improve (Evaluate, select, and implement chosen solution)
  • C: Control (Institutionalize the improved process. Sustain the gains)

Next, let’s list the high-level parts of a typical simulation project.

  • Problem Definition
  • Specifications
  • Data Collection
  • Data Analysis
  • Conceptual Design
  • Detailed Design
  • Verification
  • Validation
  • Experimentation and Analysis

Finally, let’s list the DMAIC steps only showing the integration of simulation elements.


  • Define process structure and variables


  • Develop simulation conceptual model
  • Develop detailed simulation model
  • Verify and validate simulation model


  • Develop experimental plan and design
  • Run simulation experiments
  • Analyze process flow


  • Optimize the process using simulation


  • Monitor performance over time
  • Are simulation predictions accurate?
    • If yes, continue monitoring
    • If no, modify simulation model and return to Analyze

Software for Simulation:

You will want to choose software for implementing a simulation.

There are many simulation software programs available. 

Consider what would be best for your organization, with factors such as cost, maintenance, and ease of use.

In this short video, one software provider, SIMUL8 Corporation, presents the benefits of simulation for process improvement. 

Click here for a comprehensive listing of simulation software programs for various applications.