Sjaak Brinkkemper is full professor of organisation and information at the Department of Information and Computing Sciences of the Utrecht University, the Netherlands. He leads a group of about twenty researchers specialized in product software development and entrepreneurship. In essence, he studies the implications of market conditions on software development methods and processes. He received the best paper awards for several papers, he has given keynote talks at several conferences. He has been awarded the IFIP Silver Core Medal. He is member of the steering committee of CAiSE, ECIS, ICSOB and IWSPM. He is co-founder of the International Software Product Management Board. More information about Sergio is available at: http://www.uu.nl/staff/SBrinkkemper.