Tollgate Review

Six Sigma Analyze Tollgate Review

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 Analyze 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.

Analyze Tollgate Review:

Failure Modes and Effects Analysis (FMEA) (Qualitative Analysis)

  • Has the Preliminary FMEA been developed?
    • Has the Team drilled down on at least the five Key Inputs determined through the C&E Matrix
  • Has the team discovered any quick wins from the FMEA? If so, how are they being dealt with?

Quantitative Analysis

  • What Statistical Tools were used to analyze the data?
  • Has the team gathered data for a Mult-Vari Analysis to determine the “Critical Few” Variables?
  • Has the team used the Basic Quality Tools to graphically analyze the data?
  • Has a Hypothesis statement(s), null hypothesis and alternative hypothesis has been developed for the data analyzed

Quantifying the Gap/Opportunity

  • What is the cost of poor quality (COPQ) as supported by the team’s analysis?
  • What are the revised rough order estimates of the financial savings/opportunity for the improvement project?
  • Have the problem and goal statements been updated to reflect the additional knowledge gained from the analyze phase?
  • Have any additional benefits been identified that will result from closing all or most of the gaps?
  • What were the financial benefits resulting from any ‘ground fruit or low-hanging fruit’ (quick fixes)?
Tollgate Review
Tollgate Review

Analyze Stage Deliverables:

  • Revised Charter problem statement reflecting an increased understanding of the problem
  • Additional Sources of Variation statistically quantified and prioritized
  • Use and display Multi-Vari tools to identify and verify the “Vital few” (Knob Variable) factors
  • Graphical analysis and interpretation of data using Basic Quality Tools
  • Correlation and Regression Analysis (if Applicable)
  • Hypothesis statement(s), null hypothesis and alternative hypothesis has been developed for the data analyzed
  • Hypothesis test output, p value and interpretation of the data
  • Any red flags with project or project scope and recommendations to resolve
  • Red flags and recommendations for resolving them defined
  • Next steps documented
  • Approval of report out signed by Project Champion