A Tollgate Review will help you determine if the goals in a DMAIC stage have been completed and whether you can move on to the next stage. A Six Sigma Control Tollgate Review is like a checkpoint at which the various team members meet with a project Champion and determine whether the work has been performed as indicated in the project plan and whether the objectives mentioned have been achieved.

Control Tollgate Review:

Monitoring Plan tollgate-analyze-stop

  • Is there a control plan in place for this project?
  • What key inputs and outputs are being measured?
  • How will input, process, and output variables be checked to detect for sub-optimal conditions?
  • How will new or emerging customer needs/requirements be checked or communicated to orient the process toward meeting the new specifications?
  • Are control charts being used? If “No”, then why?
  • How will the SME’s effectively monitor performance over time?

Documented Procedures

  • Is there documented procedures to define the “New Best Practice”
  • Are corrective restorative actions indicated on the response plan for known causes to problems that might surface?

Transfer of Ownership (Project Closure)

  • Who is or are the process owners?
  • How will the day-to-day responsibilities for monitoring and continual improvement be transferred from the improvement team to the process owner?
  • Is there a recommended audit plan for routine surveillance inspections of the DMAIC project’s gains?
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Integrating and Institutionalizing Improvements, Knowledge and Learnings

  • What other areas of the organization might benefit from the project team’s improvements, knowledge, and learning?
  • How might the organization capture best practices and lessons learned so as to leverage improvements across the business?

Control Stage Deliverables:

  • Completed and approved Control Plan
  • Solution to verify process is in control
  • New process steps, standards, and documentation are ingrained into normal operations.
  • Operating procedures are consistent.
  • Training schedule outlined
  • Completed audit plan to ensure results are sustained and process remains in control
  • Reaction plan completed (part of the Control Plan)
  • Improvement transfer opportunities identified (Can you translate this to other areas?)
  • Any red flags with project or implementation of new process and recommendations to resolve
  • Signed approval of report out by Project Champion