Six Sigma Case Studies

Suppliers, supplier management

Q: I would like to browse through detailed Six Sigma Case Studies. I do not mind making a payment for detailed case studies in the fields of manufacturing, services and software.
Kindly direct me to the requisite links please.

A: Thank you for contacting ASQ and the Quality Information Center.  I received your request for case studies on Six Sigma in the fields of manufacturing, services, and software.

“Six Sigma is an organization-wide approach used to achieve breakthrough improvements tied to significant bottom-line results. Unlike previous TQM approaches, Six Sigma specifies exactly how the organization’s managers s hould set up and lead the effort. Key features are the use of data and statistical analysis, highly trained project leaders known as Black Belts and Green Belts, project selection based on estimated bottom-line results, and the dramatic goal of reducing errors to about three per million opportunities” (taken from The Quality Toolbox, 2nd ed. by Nancy R. Tague)

ASQ has over 100 case studies on Six Sigma in our Knowledge Center.  I have listed some case studies below that fit with the fields you are interested in.  I have also made a note of which case studies are open access.

Software case studies:

Optimizing Software Inspections with Statistical Quality Techniques“, Software Quality Professional, Dec. 2003 (open access)

Integrating Improvement Initiatives: Connecting Six Sigma for Software, CMMI, Personal Software Process (PSP), and Team Software Process (TSP)“, Software Quality Professional, Sept. 2003 (open acess)

Identifying Code-Inspection Improvements Using Statistical Black Belt Techniques“, Software Quality Professional, Dec. 2003

Preempting Problems“, Six Sigma Forum Magazine, Feb. 2010 (open access)

Optimizing the Software Life Cycle“, Software Quality Professional, Sept. 2003 (open access)

Six Sigma for Internet Application Development“, Software Quality Professional, Dec. 2001 (open access)

Manufacturing case studies:

Six Sigma Green, Black Belts Help Manufacturer Save Nearly $1.5 Million“, ASQ Case Study, June 2008 (open access)

Pall Corporation: A Profile in “Process Excellence”“, ASQ Case Study, April 2008 (open access)

Siemens VDO Optimizes Processes Using Six Sigma“, ASQ Case Study, Feb. 2007 (open access)

Variability Reduction: A Statistical Engineering Approach to Engage Operations Teams in Process Improvement“, Quality Engineering, April 2012 (open access)

Spinning a Solution“, Six Sigma Forum Magazine, Feb. 2010

Service industry case studies:

Simplify and Unleash: One Bank’s Strategy for Growth Through Six Sigma“, ASQ Case Study, Sept. 2008 (open access)

Streamlined Enrollment Nets Big Results for Healthcare Leader“, ASQ Case Study, Jan. 2009 (open access)

Help Desk Improves Service and Saves Money with Six Sigma“, ASQ Case Study, August 2006 (open access)

Service Provider Improves Client’s Metrics with Six Sigma“, ASQ Case Study, April 2011(open access)

Lean Six Sigma Increases Efficiency for Financial Services Firm“, ASQ Case Study, April 2012 (open access)

I hope that these case studies are helpful.  Please let me know if you have any questions or if you need additional assistance.

Best regards,

ASQ Research Librarian
Milwaukee, WI

Related content:

To obtain more resources about Six Sigma, including information regarding training and certification, please see the ASQ Six Sigma hot topic page.

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