Why you cannot use tentative language in a logic tree

I once happen to see a Current Reality Tree cluttered with “coulds” and “shoulds”. Conditional or tentative language cannot be used with logic trees and here is why. Cause-and-effect (sufficiency logic) The Logical Thinking Process logic trees use either sufficiency or necessity logic. Sufficiency or cause-and-effect relationship states that a cause, if it exists, is … Continue reading Why you cannot use tentative language in a logic tree


Why is the Logical Thinking Process so hard to sell?

This is probably the greatest frustration for Logical Thinking Process (LTP) fans: why don’t more people get interested in? Why is the Logical Thinking Process so hard to sell? Please understand “sell” with the quotation marks, I mean promote, advertise, grow the community, attract participants to seminars and courses altogether. This post is a reflection … Continue reading Why is the Logical Thinking Process so hard to sell?

The Logical Thinking Process dynamics

In this short excerpt of the June 2015 training course, Bill Dettmer shows the links between the Logical Thinking Process tools. The first link is from the Goal Tree to the Current Reality Tree (CRT). As long as the Goal is not achieved, the not-achieving Goal stated in the Goal Tree and the not-achieved Critical … Continue reading The Logical Thinking Process dynamics

Logical Thinking Process

The Logical Thinking Process refers to the work of William (Bill) Dettmer summarized in the book of the same title. The Logical Thinking Process (LTP) is a one to six steps* integrated process using sound logic and a set of tools to provide executives and system managers an effective method for designing organizational strategy, planning … Continue reading Logical Thinking Process

Conflict Resolution Diagram / Evaporating Cloud

The Conflict Resolution Diagram (CRD), also known as Evaporating Cloud (EC) or simply 'Cloud', is a necessity-logic based tool from Theory of Constraints’ Thinking Processes. As the name tells, the Conflict Resolution Diagram is used to surface and resolve conflicts, e.g. dilemmas. Conflicts, which can be named ‘different points of view’ are not always obvious, … Continue reading Conflict Resolution Diagram / Evaporating Cloud

How deep should a Goal Tree go?

When breaking down the Goal into Critical Success Factors (CSFs) and Necessary Conditions (NCs), the question soon arises: how deep should we dig to build the Goal Tree? There is no general answer to this question except: as deep as necessary to serve your purpose and as deep as necessary for you to feel comfortable … Continue reading How deep should a Goal Tree go?