bio-photo.jpgBiography of Dean Leffingwell

Dean Leffingwell is an entrepreneur, executive, author and consulting methodologist who provides agile transformation consulting services to large software enterprises.

Recently, Mr. Leffingwell was founder and CEO of consumer marketing identity company, ProQuo, Inc.He also served as chief methodologist to Rally Software ( where he focused on the application of agile development methods to large scale software development. Formerly, Mr. Leffingwell served as Sr. Vice President to  Rational Software (now IBM’s Rational Division), where his responsibilities included development and commercialization of the Rational Unified Process (RUP), ClearQuest, RequisitePro and the company’s methodology and product training courses.

Mr. Leffingwell has been a student, coach and author of contemporary software development and management practices throughout his career. His most recent book,  Agile Requirements: Lean Requirements Practices for Teams, Programs, and the Enterprise, was published by Addison-Wesley in January of 2011. This book provides practical, agile approaches to managing software requirements for teams and  teams of teams, as well as practices that scale to the full enterprise architecture and portfolio level. His prior book, Scaling Software Agility: Best Practices for Large Enterprises,  focuses on the application of agile methods to large, distributed development organizations. He is also the lead author of the text Managing Software Requirements: First and Second Editions also from Addison-Wesley. Mr. Leffingwell holds a Masters Degree in Engineering from the University of Colorado in Boulder.

From 1993 to 1997, Leffingwell was founder and CEO of Requisite, Inc. , makers of RequisitePro, which was acquired by Rational in 1997. He was also the author of Requirements College, a three day software methods course. Prior to 1993, Leffingwell was founder, chairman and CEO of publicly held Colorado MEDtech, Inc. and it’s predecessor company, RELA, Inc., a Boulder-based software, product development and manufacturing outsourcing company.

Mr. Leffingwell is an experienced entrepreneur and businessman who has served as a board member at a number of public and private companies throughout his career.

He can be reached at Dean Leffingwell (without the space) at


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