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Daniel Fitton – d.fitton@lancaster.ac.uk

The CASCO Project: Investigating Context Aware Support for Cooperative Applications in Ubiquitous Computing Environments. Daniel Fitton – d.fitton@lancaster.ac.uk. Context Aware Messaging System.

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Daniel Fitton – d.fitton@lancaster.ac.uk

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  1. The CASCO Project:Investigating Context Aware Support for Cooperative Applications in Ubiquitous Computing Environments Daniel Fitton – d.fitton@lancaster.ac.uk Context Aware Messaging System • Provide simple and effective system to facilitate colleague location awareness, and intelligent messaging. • Context sensitive, public and private, message delivery. • Designed to run on an embedded device positioned outside an office.

  2. Simple Scenario • Public Message ‘Out to lunch’ visible to all passers-by. • Persons wishing to use the system docks their iButton. • Persons recognised as members of the department are allowed to view the time the office was left, and request notification on return by e-mail, ICQ message (etc). • Persons recognised as colleagues working on the same project are allowed to view more detailed context information e.g. where the person went for lunch, and leave a short text message to be delivered by most effective means e.g. if the user has a mobile phone and has left department then via sms, or leave voice mail. • If the person in question knows that they will return later than expected, they can update the system with this information by sending a sms message, the public display will be updated, and all interested parties notified through appropriate means.

  3. Functionality • Voice to speech gateway to eliminate use of on-screen keyboard. • Integration with e-mail, SMS, MSN messenger, ICQ. • Video and audio conferencing. • Integration with other context aware ubiquitous technologies e.g. MediaCup. • Notification of events e.g. when person returns to office • Use of iButtons to identify users securely & easily. • Different user groups with different levels of trust. • Easy update of context using any client device, mobile device, or on the web. • Systems’ own internal messaging system. • Possible to provide directions to persons current location.

  4. Implementation • System will be implemented in Java 1.4 using Jini for resource discovery, JMF for media streaming and JSAPI for speech. • User clients will be Compaq iPAQs running SavaJe XE (a native Java OS for StongARM processors). • Development and server side software will be on Linux. CASCO • Primary objectives to construct a design space for context aware applications, and address the human factors associated with context sharing. • Involves development and evaluation of prototype context sensitive applications, in addition to theoretical research. • Context aware messaging system highly useful starting point for the project, and good demonstration of context aware application. d.fitton@lancaster.ac.uk http://www.lancaster.ac.uk/ug/fittond/casco

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