Theory of Constraints

Learn the Basics 

See an overview of theory of constraints from the Service Quality Division's collection of tools.  

Featured Resources 

Lean Maintenance Repair and Overhaul

P1565-MLean Maintenance Repair and Overhaul describes how MRO organizations can achieve significant improvement in financial performance by applying the theory of constraints (TOC) to guide the implementation of lean manufacturing tools.

Don't Lose Patients

Don't Lose Patients coverA case study from the February 2013 Quality Progress shows how a hospital combined lean Six Sigma and the theory of constraints to identify and eliminate bottlenecks, cutting patient wait time by 70%.

Profitability with No Boundaries Sampler

H1395-MRead two sample chapters from Profitability with No Boundaries: "Chapter 1: Productivity, Growth and Prosperity" and "Chapter 4: Current Continuous Process Improvement Favorites."

Chapter 4 includes an overview of three elements of the theory of constraints: 

  • The five focusing steps
  • Thinking processes
  • Critical chain project management

How to Compare Six Sigma, Lean and the Theory of Constraints

Table 2 Comparing Lean, SS, TOCThis popular Quality Progress article from March 2002 presents a framework for choosing the improvement approach that works best for your organization. 

Lean Acres Webcast

H1408-MJim Bowie, a strategic performance improvement expert and author of Lean Acres, provides an introduction to his book and shares how the basics of lean, Six Sigma, theory of constraints, and business process reengineering fit into the continuous improvement journey in a complex environment.


Articles and Case Studies 

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Related Certifications

Manager of Quality/Organizational Excellence (CMQ/OE) 

Six Sigma Black Belt (CSSBB)

Six Sigma Green Belt (CSSGB)

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