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Sensors 2014, 14(5), 9227-9246; doi:10.3390/s140509227

RESTful Discovery and Eventing for Service Provisioning in Assisted Living Environments

1,* , 2
1 Embedded Systems, IK4-Ikerlan, J.M. Arizmendiarrieta 2, Arrasate-Mondragón 20500, Spain 2 College of Computer and Information Sciences, King Saud University, PO Box 51178, Riyadh 11543, Saudi Arabia 3 Communications Engineering Department, University of the Basque Country (UPV/EHU), Alda. Urquijo s/n, Bilbao 48013, Spain
* Author to whom correspondence should be addressed.
Received: 1 April 2014 / Revised: 18 May 2014 / Accepted: 20 May 2014 / Published: 23 May 2014
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Service provisioning in assisted living environments faces distinct challenges due to the heterogeneity of networks, access technology, and sensing/actuation devices in such an environment. Existing solutions, such as SOAP-based web services, can interconnect heterogeneous devices and services, and can be published, discovered and invoked dynamically. However, it is considered heavier than what is required in the smart environment-like context and hence suffers from performance degradation. Alternatively, REpresentational State Transfer (REST) has gained much attention from the community and is considered as a lighter and cleaner technology compared to the SOAP-based web services. Since it is simple to publish and use a RESTful web service, more and more service providers are moving toward REST-based solutions, which promote a resource-centric conceptualization as opposed to a service-centric conceptualization. Despite such benefits of REST, the dynamic discovery and eventing of RESTful services are yet considered a major hurdle to utilization of the full potential of REST-based approaches. In this paper, we address this issue, by providing a RESTful discovery and eventing specification and demonstrate it in an assisted living healthcare scenario. We envisage that through this approach, the service provisioning in ambient assisted living or other smart environment settings will be more efficient, timely, and less resource-intensive.
Keywords: REST; middleware; discovery; eventing; health monitoring REST; middleware; discovery; eventing; health monitoring
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Parra, J.; Hossain, M.A.; Uribarren, A.; Jacob, E. RESTful Discovery and Eventing for Service Provisioning in Assisted Living Environments. Sensors 2014, 14, 9227-9246.

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