Biography of Dean Leffingwell
Dean Leffingwell is a consultant, entrepreneur, software executive and technical author who provides product strategy,
business advisory services and enterprise-level agility coaching to large software enterprises.
From 2006-2007, Mr. Leffingwell was founder and CEO of consumer marketing identity company ProQuo, Inc. Mr.
Leffingwell has also served as chief methodologist to Rally Software and as business consultant to Ping Identity
Corporation and Roving Planet, Inc.
Formerly, Mr. Leffingwell served as Vice President of Rational Software, now IBM’s Rational Division, where he was
responsible for the Rational Unified Process and promulgation of the UML. Previously, Leffingwell was co-founder and
CEO of software tools company Requisite, Inc., makers of RequisitePro for requirements management, which was
acquired by Rational. Mr. Leffingwell was also the founder and CEO of RELA, Inc., and publicly held Colorado MEDtech.
Mr. Leffingwell has been a student, coach and author of contemporary software engineering and software development
management practices throughout his career. His latest book, Scaling Software Agility: Best Practices for the Large
Enterprises was published by Addison-Wesley in 2007. He is also the lead author of the text Managing Software
Requirements, First and Second Editions, also from Addison-Wesley.
Dean Leffingwell is a consultant, entrepreneur, software executive and technical author who provides product strategy,
business advisory services and enterprise-level agility coaching to large software enterprises.
From 2006-2007, Mr. Leffingwell was founder and CEO of consumer marketing identity company ProQuo, Inc. Mr.
Leffingwell has also served as chief methodologist to Rally Software and as business consultant to Ping Identity
Corporation and Roving Planet, Inc.
Formerly, Mr. Leffingwell served as Vice President of Rational Software, now IBM’s Rational Division, where he was
responsible for the Rational Unified Process and promulgation of the UML. Previously, Leffingwell was co-founder and
CEO of software tools company Requisite, Inc., makers of RequisitePro for requirements management, which was
acquired by Rational. Mr. Leffingwell was also the founder and CEO of RELA, Inc., and publicly held Colorado MEDtech.
Mr. Leffingwell has been a student, coach and author of contemporary software engineering and software development
management practices throughout his career. His latest book, Scaling Software Agility: Best Practices for the Large
Enterprises was published by Addison-Wesley in 2007. He is also the lead author of the text Managing Software
Requirements, First and Second Editions, also from Addison-Wesley.
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