In this video, Dr. Richard Chua explains how to identify and use process flow metrics such as work in progress and throughput for your Six Sigma project.
- When I'm in line to checkout at the grocery store…there's usually a long wait,…and the wait's even more frustrating if I see grocery staff…milling around and not at the vacant checkout registers.…This type of workflow problem needs to be fixed,…and there are a number of metrics to measure how well…any process flows.…To start you can analyze the work in process or WIP,…which are all the items being processed and items in…between waiting to be processed.…For example, if you are in line at the grocery store…the WIP for checkout is the total number of customers…being checked out plus the number of customers standing…in line waiting to be checked out.…
This is important because the more WIP there is,…the longer the wait and the longer it takes to leave…the grocery store.…The rates at which customers leave the grocery store…after checking out is the throughput rate.…Another metric to consider is the cycle time for a…process step or workstation.…It's the time it takes between starts or completions…of processing items.…
Author
Released
5/25/2017Dr. Richard Chua builds upon his Six Sigma: Green Belt, Six Sigma Foundations, and Learning Minitab courses—which are prerequisites to this course—and covers an array of topics, including measurement system analysis, hypothesis testing, response surface methods, displaying improved process capabilities, and more.
- Process flow metrics
- Measurement system analysis
- Calculating process capability
- Hypothesis testing
- Confidence intervals
- Testing for normality
- Designing, conducting, and analyzing full-factorial experiments
- Using fractional factorial experiments for screening
- Displaying improved process capability
Skill Level Intermediate
Duration
Views
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Learning Minitab
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Statistics Foundations: 2
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Six Sigma: Green Belt
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Lean Six Sigma: Define and Measure Tools
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Introduction
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Welcome1m 38s
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Certification information1m 31s
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Exercise files34s
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1. Define Phase
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Overview of the Define phase3m 51s
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2. Measure Phase
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Process flow metrics3m 34s
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Sample sizes3m 7s
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3. Analyze Phase
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Hypothesis testing road map3m 33s
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Confidence intervals3m 14s
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Test for normality2m 49s
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Compare variances5m 16s
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T-tests6m 4s
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ANOVA3m 55s
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Contingency tables6m 49s
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Nonparametric tests6m 49s
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Correlation3m 45s
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Linear regression4m 38s
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Multiple regression5m 5s
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4. Improve Phase
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Full-factorial experiments9m 19s
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DOE with curvature6m 27s
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Response surface methods8m 37s
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5. Control Phase
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SPC chart selection4m 46s
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SPC chart analysis5m 1s
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Conclusion
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Next steps56s
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Video: Process flow metrics