The Psychology of Quality and More

| Menu | Books | Share | Search | Settings |

A Toolbook for Quality Improvement and Problem Solving (contents)

Decision Tree: Practical variations

The Quality Toolbook > Decision Tree > Practical variations

When to use it | How to understand it | Example | How to do it | Practical variations


<-- Previous | Next -->

Practical variations

  • When the complete Decision Tree is large, break it into separate sub-trees. This makes it easier to calculate and understand.
  • Use a Prioritization Matrix both to select the possible actions to consider and to identify the subsequent events.
  • Sometimes multiple events occur between actions. These can be handled by rippling back the calculation, as illustrated.
  • Use the Decision Tree with the Activity Network, to plan for alternative project actions.
  • A Probability Tree Diagram (Fig. 1) uses a Decision Tree just to break down sequences of possible events. If probabilities of individual events are known, then overall probabilities can be calculated by multiplying at each level, as illustrated below. Note that the final set of probabilities still sums to 1, as it represents all possible outcomes.


Fig. 1. Probability Tree


<-- Previous | Next -->


Site Menu

| Home | Top | Settings |

Quality: | Quality Toolbook | Tools of the Trade | Improvement Encyclopedia | Quality Articles | Being Creative | Being Persuasive |

And: | C Style (Book) | Stories | Articles | Bookstore | My Photos | About | Contact |

Settings: | Computer layout | Mobile layout | Small font | Medium font | Large font | Translate |


You can buy books here

More Kindle books:

And the big
paperback book

Look inside


Please help and share:


| Home | Top | Menu |

© Changing Works 2002-
Massive Content -- Maximum Speed