After a period as a mathematics teacher and commercial programmer, Nigel Seel spent the 1980s in the UK lab of IT&T working on formal methods for software development, artifi cial intelligence, and distributed computing. He also completed his Ph.D. in artifi cial intelligence and mathematical logic. In the 1990s Nigel worked in Bell-Northern Research (Nortel’s R&D organization) and later Nortel itself as a carrier network architect, latterly being lead designer for Cable & Wireless’s £400 million UK network rebuild in 1998-99. He then freelanced as an independent designer until 2001 when he was hired by Cable & Wireless Global as chief architect, and relocated to Vienna, Virginia. Subsequently he was appointed vice president for portfolio development. Following the collapse of C&W Global Nigel relocated back to the UK. After more freelance consultancy, he worked with the UK management consultancy Mentor from April 2004 through January 2006. He is currently freelancing again through his company Interweave Consulting.