%0 Journal Article %T Accessing Wireless Sensor Networks Via Dynamically Reconfigurable Interaction Models %A Maria Cec¨ªlia Gomes %A Herv¨¦ Paulino %A Ad¨¦rito Baptista %A Filipe Ara¨²jo %J International Journal of Interactive Multimedia and Artificial Intelligence %D 2012 %I ImaI-Software %X The Wireless Sensor Networks (WSNs) technology is already perceived as fundamental for science across many domains, since it provides a low cost solution for environment monitoring. WSNs representation via the service concept and its inclusion in Web environments, e.g. through Web services, supports particularly their open/standard access and integration. Although such Web enabled WSNs simplify data access, network parameterization and aggregation, the existing interaction models and run-time adaptation mechanisms available to clients are still scarce. Nevertheless, applications increasingly demand richer and more flexible accesses besides the traditional client/server. For instance, applications may require a streaming model in order to avoid sequential data requests, or the asynchronous notification of subscribed data through the publish/subscriber. Moreover, the possibility to automatically switch between such models at runtime allows applications to define flexible context-based data acquisition. To this extent, this paper discusses the relevance of the session and pattern abstractions on the design of a middleware prototype providing richer and dynamically reconfigurable interaction models to Web enabled WSNs. %K Web Enabled %K Wireless Sensor Networks %K Dynamic Interaction Models %K Design Pattern %U http://www.ijimai.org/journal/sites/default/files/files/2012/11/ijimai20121_7_6_pdf_26241.pdf