Cyberguide: a mobile context-aware tour guide
Wireless Networks - Special issue: mobile computing and networking: selected papers from MobiCom '96
ConChat: A Context-Aware Chat Program
IEEE Pervasive Computing
FDX: federating devices and web applications
ICWE '06 Proceedings of the 6th international conference on Web engineering
Context-sensitive user interfaces for semantic services
ACM Transactions on Internet Technology (TOIT)
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Today context-aware applications are isolated systems designed for a special scenario. There is no way to combine different applications, which is common practice with desktop applications since years. For example, the airline knows when your plane leaves, your PDA knows your GPS position, VirtualEarth knows how long you need to the airport, and another service can order a taxi to your current position. When you manage to combine these services, you will get informed when you must go to the airport and a taxi is ordered to your current position. Thus, in the future we need to federate context-data retrieved from different sources and services on the internet. This imposes several challenges: (1) We need an architecture that allows us to federate these services and to communicate with the users. (2) We need tools that allow programmers to quickly implement and deploy services on the network to generate a grass-roots movement. (3) We need a general purpose user-interface for such applications that allows users to deal with context-data and interact with context-aware services. In this paper we sketch our architecture for service-oriented context-aware applications. Based on this architecture we develop a general purpose user interface which is a collage of instant messenger, roadmap, and web browser. In this paper, we describe the formatting requirements for the CHI Conference and offer a number of suggestions on writing style for the worldwide CHI readership.