Ambient Intelligence Perspectives II contains selected papers from the second international Ambient Intelligence Forum—AmIF 2009, held in Hradec Králové, Czech Republic. This book aims to point to a multifaceted nature of ambient intelligence. It presents ambient intelligence in five different perspectives. The first perspective focuses on general issues and discusses the concepts of ambient intelligence. The second perspective deals with ambient intelligence enablers that facilitate the development of concepts and approaches. The third one presents applications of ambient intelligence in various fields and activities. The fourth is concerned with ambient intelligence as being materialized in intelligent environments integrating devices and knowledge in order to assist and support humans. The last perspective covers the cognitive aspects of ambient intelligence. IOS Press is an international science, technical and medical publisher of high-quality books for academics, scientists, and professionals in all fields. Some of the areas we publish in: • Biomedicine • Oncology • Artificial intelligence • Databases and information systems • Maritime engineering • Nanotechnology • Geoengineering • All aspects of physics • E-governance • E-commerce • The knowledge economy • Urban studies • Arms control • Understanding and responding to terrorism • Medical informatics • Computer Sciences