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Case Studies

Learn how organizations around the world are using quality tools and approaches to improve processes, save money and drive revenue, and increase customer satisfaction. Search more than 1,800 examples of case studies sharing quality solutions to real-world problems.

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Featured Case Studies

Ideality: The Pinnacle of Quality and Competition

Ideality Sunil Image1For any given contradiction, TRIZ has a solution for improving the process by making changes to a process step. Within TRIZ lies a concept called ideality, or the ideal state of a system where all functions are achieved without problem. In this case study, the author explains how ideality can be achieved using real-life examples. Read the online case study presentation or download Ideality: The Pinnacle of Quality and Competition (PDF).


U.S. Defense Department Lab First to Achieve ISO 17025 Accreditation for Analyzing Chemical Warfare Agents

DoD CS Fig1SmTo further meet the needs of its customers, the Environmental Monitoring Laboratory (EML) of Edgewood Chemical Biological Center sought ISO 17025 accreditation. The laboratory helps the U.S. Department of Defense establish quality control requirements when testing for chemical warfare agents (CWA). In preparation for accreditation, EML created or modified more than 60 controlled documents. The laboratory became the first lab of its kind to achieve ISO 17025 accreditation for CWA in October 2014. Read the online case study presentation or download U.S. Defense Department Lab First to Achieve ISO 17025 Accreditation for Analyzing Chemical Warfare Agents (PDF).


Process Management Approach Reduces Scrap, Saves Alcoa Millions

A team at Alcoa Power and Propulsion sought to improve product quality, reduce waste and inefficiency, and cut costs. To achieve these goals, the team developed and implemented a structured process management approach across the business unit. By defining and then standardizing key processes, the unit minimized variation, shared best practices, and sustained improvements. The project improved customer satisfaction, reduced costs of poor quality, and saved millions of dollars. The team was named a finalist in ASQ’s 2015 International Team Excellence Awards competition. Read the online case study presentation or download Process Management Approach Reduces Scrap, Saves Alcoa Millions (PDF).


DMADV Project Saves $2 Million for Brazilian Mining Company

Samarco DMADV Case TeamA Six Sigma team at Samarco Mining developed a low-energy iron ore pellet to meet customer needs and internal goals. Using the DMADV methodology and a variety of quality tools, the team helped Samarco realize more than $2 million in savings annually through this project. The team was named a finalist in ASQ’s 2015 International Team Excellence Awards competition. Read the online case study presentation or download DMADV Project Saves $2 Million for Brazilian Mining Company (PDF).


Faster Lean and Six Sigma Project Completion via TRIZTRIZ CS Img2

Lean Six Sigma (LSS) problem solving consumes a lot of effort in identifying the root cause and involves a trial and error method for confirming significant factors. For any given contradiction, TRIZ has a solution for improving the process by making changes to a process step. Combining TRIZ and LSS through a structured approach can help reduce the effort and duration of LSS projects by nearly 10 times. Read the online case study presentation or download Faster Lean and Six Sigma Project Completion via TRIZ (PDF).


Using DMAIC to Improve Nursing Shift-Change Assignments

Nurse Shift CS Img1In this case study involving an anonymous hospital, nursing department leaders sought to improve efficiency of their staff’s shift change assignments. Upon value stream mapping the process, team members identified the shift nursing report took 43 minutes on average to complete. Using DMAIC and other quality tools, team members improved the process’ sigma level from 0.7 to 3.3. Read the online case study presentation or download Using DMAIC to Improve Nursing Shift-Change Assignments (PDF).


YMCA Upgrades Day Camps Using Six Sigma

YMCA Camp 1When a senior leader at the YMCA of the USA introduced Six Sigma to the youth development department, a new method for managing and tracking projects was ushered into the organization. Upon completing a Green Belt-level training course, a YMCA project team used Six Sigma tools to improve the culture of the organization’s summer day camp. As staff became more comfortable using Six Sigma, project work became more organized and data-driven, and the project team exceeded its first-year goals. Read the online case study presentation or download YMCA Upgrades Day Campus Using Six Sigma (PDF).


Using Control Charts in a Healthcare Setting

Boepple Healthcare Lead ArtThis teaching case study features characters, hospitals, and healthcare data that are all fictional. Upon use of the case study in classrooms or organizations, readers should be able to create a control chart and interpret its results, and identify situations that would be appropriate for control chart analysis. The case is best suited for MBA operations courses and modules, particularly those focused on operations/process improvement. It also could be used in a hospital setting at a facility that has embraced a continuous improvement philosophy. Read the online case study presentation or download Using Control Charts in a Healthcare Setting (PDF).

Classic Case Study

Trading Accreditation for Performance Excellence Model: New Zealand Not-for-Profit Hands Back ‘Certification’

February 2012

-To move forward on its journey to excellence, Spectrum Care searched for the right quality framework and discovered the New Zealand Business Excellence model.

-At the same time, the organization concluded that its accreditation process failed to provide a significant challenge, so it returned its “certification” to the auditing body.

-In this case study, using an organization-wide approach, Spectrum Care applied the new framework to all service areas and activities.

-The organization earned a Silver Award from the New Zealand Business Excellence Foundation in 2010.

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