Kai Gilb worked with Tom since 1990 broadens the scope (example, expanding from product focus to Stakeholders) & focusing on essential fundamentals written the Evo Project Management book manuscript, see ww.gilb.com

Tom is the author of nine books, and hundreds of papers on these and related subjects. His latest book ‘Competitive Engineering’ is a substantial definition of requirements ideas. His ideas on requirements are the acknowledged basis for CMMI level 4 (quality quantification, as initially developed at IBM from 1980). Tom has guest lectured at universities all over UK, Europe, China, India, USA, Korea – and has been a keynote speaker at dozens of technical conferences internationally. Tom has consulted with Citigroup, and Credit Suisse both of which have adopted some of his methods successfully. He also has had substantial documented adoption of his methods at Boeing, HP, IBM, Philips Medical, Ericsson, Nokia, Siemens, Schlumberger, Sony, Qualcomm, Microsoft and many more. He invented the concept of Software Metrics (1976, book), and is widely cited as the pioneer of the Agile rapid development cycle (Principles of Sw Eng. Mgt", 1988. His own agile method, the original one - is called 'Evo'. It is successfully used as a front end to Scrum. See www.Gilb.com for more detail.