Colin Hood was also one of more than 30 people involved in the book to support the qualification of Certified Professional in Requirements Engineering (CPRE) from the International Requirements Engineering Board (IREB) which he co-founded.
http://www.ireb.org/en/people-profiles/hood
This book has the aim of getting people through a multiple choice exam to gain a certificate.
Colin Hood also colaborated on a study to compare requirements management tools. A new issue of this study was published in 2012.
http://www.arcway.com/wp-content/uploads/2012/10/IX_Studie_Anforderungsmanagement_Auszug.pd