ISSN : 1796-2056
Volume : 2    Issue : 1    Date : February 2007

Adaptive Semantic Middleware for Mobile Environments
Antonio Corradi, Rebecca Montanari, and Alessandra Toninelli
Page(s): 36-47
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Context-awareness is considered a key driving principle for the design and provisioning of
adaptable pervasive services. Rightfully describing and interpreting context, however, is a
challenging issue. Semantic technologies are emerging as effective means to describe and reason
about context information and to allow unknown entities to have a common understanding of
context. However, the exploitation of semantic technologies for the design/deployment of
context-aware applications in pervasive environments replete with heterogeneous devices requires
to address several issues. In particular, a crucial aspect is how to support semantic based service
provisioning to mobile devices with limited capabilities. Novel solutions are required to
transparently and dynamically adapt semantic-based service provisioning to the properties of
different access devices. The paper proposes a middleware-level solution approach that exploits
the visibility of two kinds of metadata (profiles and policies) to support the configurability of the
semantic support functionalities depending on user/device properties, and that offers a wide set of
mechanisms for making viable semantic based service provisioning even to resource-constrained
portable devices.

Index Terms
Semantic Web, pervasive computing, mobile computing, configuration middleware, adaptive