Intentional Perspectives on Information Systems Engineering Requirements engineering has since 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 co editors collected twenty contributions from leading researchers in requirements engineering with the intention to comprehensively present an overview of the different perspectives that exist today in 2010 on the concept of intention in the information systems community. These original papers honor Colette Rolland for her contributions to this field as 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 dhorizon of Colette Rollands lifework and is presented to her on the occasion of her retirement at CaISE 2010 in Hammamet the conference she once cofounded and which she helped to grow and prosper for more than 20 years.