Wideman Comparative Glossary of Common Project Management Terms v5.5 is copyright © R. Max Wideman, 2000‑2022.

Please feel free to point to this document. For non-profit purposes you may copy this page provided the above copyright notice is attached. For inclusion in for-profit works, please contact the author at

Last updated

Wideman's PM Glossary v5.5

Introduction | What's New in Version 5.5 | International Recognition
About the Author | Sources and References | Order v6.1

What's New in Glossary Version 5.5

In this version 5.5 we've added another 200 entries. These include more terms specific to the separate disciplines of project portfolio management and corporate program analysis. We have also culled a number of definitions that we now consider obsolete. This leaves the net total of entries to around 6,400, with the number of discrete terms at over 4,400 derived from over 230 references.

As previously, where multiple definitions are provided for a given term, the intent is to show either different interpretations, or similar interpretations but with additional nuances. In such cases, our "Editor's Choice" is generally based on our belief of the most common understanding expressed in the simplest wording.

However, readers are well advised to peruse all remaining definitions under the same heading, and follow the links where necessary, to obtain a fuller understanding and insight into the intent and diversity of the term in question.

As always, feedback on the entries or comments on this latest Glossary version will be much appreciated. You can contact the Editor by Email at

Note regarding the PMBOK Guide 5th Edition (2013) Glossary
We have reviewed the Project Management Institute's A Guide to the Project Management Body of Knowledge (PMBOK® Guide) – Fifth Edition and satisfied ourselves that all of the terms listed there are covered in our Glossary by definitions with very similar intent. Exact wordings have not been included because of the Institute's copyright restrictions. This has not influenced our selection of Editor's Choice.

Home | Issacons | PM Glossary | Papers & Books | Max's Musings
Guest Articles | Contact Info | Top of Page