Standardizing Six Sigma Green Belt training: identification of the most frequently used measure phase DMAIC tools

Abstract

Purpose This study aims to identify the most frequently used tools and techniques within the measure phase of the define, measure, analyze, improve and control (DMAIC) methodology in the Six Sigma Green Belt body of knowledge (BOK) to standardize training curriculum and reduce barriers to Six Sigma adoption. Design/methodology/approach This study measures the most frequently used tools within the Measure Phase of the Green Belt body of knowledge by surveying Six Sigma professionals from all industries as to how often they use tools specific to the Measure Phase. Professionals rated ten categories of tools based on frequency use as it pertains to a Green Belt level Six Sigma project. Descriptive analysis, t-tests, and ANOVA were performed on the data using Minitab to identify the most frequently used tool categories. Findings The findings of this study indicate that the most frequently used measure phase tools and techniques within in the Six Sigma Green Belt BOK are process mapping, control charts, descriptive statistics, graphical analysis, collecting and summarizing data, process capability analysis and Six Sigma statistics (defects per unit, defects per million opportunities, etc.). The research findings indicate that several tools that require a higher level of statistical understanding are used less frequently. Research limitations/implications The research study solely analyzed the measure phase tools within the Green Belt Six Sigma BOK. Other Six Sigma bodies of knowledge should be evaluated in their entirety. Practical implications Six Sigma training has been identified in previous research studies as a barrier to implementation. By identifying the most frequently used tools and determining that those tools are less statistically intensive, companies may be more inclined to adopt Six Sigma. Reducing the tools required to master to lead and carryout Six Sigma projects can also help to reduce the cost and time required for Six Sigma training. Originality/value Many studies have identified the lack of a standardized curriculum for Six Sigma and Lean Six Sigma. This research serves to function as a supportive analysis in identifying the most optimal and useful tools to lead successful Six Sigma and process improvement projects and contributes to the journey of establishing a standardized Six Sigma training curriculum.

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