Requirements engineering has long acknowledged the importance of the notion that system requirements are stakeholder goals - rather than system functions - and ought to be elicited, modeled and analyzed accordingly. In this book, Nurcan and her coeditors have collected 20 contributions from leading researchers in information systems engineering, presenting a comprehensive overview of today's different perspectives on the concept of intention in the information systems community. These original papers honor Colette Rolland for her contributions to this field - she was probably the first to emphasize that 'intention' has to be considered as a first-class concept in information systems engineering. Written by long-term collaborators - and most often friends - of Colette Rolland, this volume covers topics like goal-oriented requirements engineering, model-driven development, method engineering, and enterprise modeling. As such, it is a tour d'horizon of Colette Rolland's lifework, and it was presented to her on the occasion of her retirement at CAiSE 2010 in Hammamet, the conference that she cofounded and then nurtured and supported for over 20 years.