30 Copyright © 2011, IGI Global. Copying or distributing in print or electronic forms without written permission of IGI Global is prohibited. Chapter 3 A User-Driven Approach to Developing Ambient Assisted Living Systems for Older People: The SOPRANO Project aBstRact This chapter describes some of the results of the EU-funded SOPRANO project to develop an Ambient Assisted Living system to promote active ageing and ageing-in-place. The chapter outlines SOPRANO’s experience and application research approach to ensure that end-users are involved in all stages of the research and development. A number of key areas for application development were identifed and developed as a set of use cases (or descriptive models), for example for medication reminding, and to support exercise. These use cases were further refned through visualization and iterative prototyping techniques with end-users to ensure usability, usefulness and acceptability for users. The SOPRANO prototype system is described together with future plans for deployment in demonstration sites and feld trials. Andrew Sixsmith Simon Fraser University, Canada Sonja Mueller empirica Gesellschaft fur Kommunikations und Technologieforschung,Germany Felicitas Lull empirica Gesellschaft fur Kommunikations und Technologieforschung, Germany Michael Klein CAS Software AG, Germany Ilse Bierhoff Smart Homes, The Netherlands Sarah Delaney Work Research Centre, Ireland Paula Byrne University of Liverpool, UK Sandra Sproll University Stuttgart, Germany Robert Savage Simon Fraser University, Canada Elena Avatangelou Exodus, SA, Greece DOI: 10.4018/978-1-61520-825-8.ch003