What Needs to Change?

The identification and subsequent treatment of constraints results in an order of magnitude improvement in performance.

Bookmark and Share

Instant Downloads:

TOC Slide Presentations

demoThese presentations showcase illustrations of the TOC approach in educational settings. Included are an introduction to TOC by Kathy Suerken, President of TOC for Education (TOCFE), and additional presentations at various international TOC events. View, select and download TOC presentations and TOC Mentors workshop now...

Current Events:

2013 TOCICO International Conference

Holistic Use of TOC in a University PDF

Watch Dr. Umesh Nagarkatte Webinar On TOC for Education Virtual Conference 2012


TOC in the News:

2014 International Achievement Award winners!

demoThe TOCICO is pleased to announce that in recognition for sustained excellence and demonstrated results utilizing TOC in addition to significant contributions to the TOC Community Learn more...


Eli Schragenheim recieves Lifetime Achievement Award!

demoCongratulations to Eli Schragenheim for receiving the Lifetime Achievement award at the 2014 TOCICO International conference! Learn more...


Dr. James Holt receives Lifetime Achievement Award!

demoDr. James Holt, professor at Washington State University, received the Lifetime Achievement Award at the 2013 TOCICO International Conference in Bad Nauheim, Germany. Learn more...



1) Identify the Constraints

Answering the question, "What needs to change?", utilizes both "hard" data and "soft" feelings and intuition to bring to the surface the root cause or the main constraint of a current state of the system (or current reality). 

In TOC, the existence of a constraint inhibits "flow" or performance of the system. In this way, TOC tends to view a constraint as positive since its identification and subsequent treatment results in an order of magnitude improvement in performance. 

The steps or tools used here are "listing issues or UnDesirable Effects (UDEs)", developing "Evaporating Cloud" (EC) and creating the "Current Reality Tree" (CRT).