ContextML: a light-weight context representation and context management schema

Authors:
Michael Knappmeyer;Saad Liaquat Kiani;Cristina Frà;Boris Moltchanov;Nigel Baker
Affiliations:
Mobile & Ubiquitous Systems Group, Bristol Institute of Technology, University of the West of England, Bristol, UK and Faculty of Engineering and Computer Science, University of Applied Scienc ...;Mobile & Ubiquitous Systems Group, Bristol Institute of Technology, University of the West of England, Bristol, UK;Telecom Italia Lab, Torino, Italy;Telecom Italia Lab, Torino, Italy;Mobile & Ubiquitous Systems Group, Bristol Institute of Technology, University of the West of England, Bristol, UK
Venue:
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Year:
2010

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Abstract

Context representation is a fundamental process in developing context aware systems for the pervasive world. We present a light weight XML based context representation schema caUed ContextML in which context information is categorized into scopes and related to different types of entities (e.g. user, device). The schema is also applied for encoding management messages in order to allow for a flexible framework supporting gradual plug & play extendibility and mobility. ContextML is tailored to be used for REST-based communication between the framework components. Explanation of the schema is provided with the help of real world examples. Moreover, the European CCAST testbed is introduced, embracing a variety of context providers and application domains.