Towards service orientation in pervasive computing systems

Abstract

The emergence of the service-oriented computing paradigm has opened the possibility of using dynamic binding of application requirements to the resources needed to fulfill application tasks. Especially in pervasive computing that is characterized by disconnected operation and mobility, the process of using service specifications and dynamic binding becomes critical. In this paper, we summarize our ongoing work in the area of integrating service orientation into pervasive computing using the notion of specifying service requirements and using these specifications to bind to the available resources dynamically instead of hardwiring them statically. We term these specifications programmable requirements since they can be interpreted at run time to bind to a resource satisfying those specifications. Interestingly this approach also satisfies the basis for two key types of adaptation prevalent in pervasive computing systems -functional and architectural -as we show in this paper.

ubiSOAP: A Service-Oriented Middleware for Ubiquitous Networking

“…However, enabling serviceoriented computing in ubiquitous networking environments raises key challenges among which overcoming resource constraints and volatility of wireless, mobile devices. This has in particular led to introduce lightweight service-oriented middleware [2], [1], [3], [36]. However, to the best of our knowledge, none of the existing solutions comprehensively integrate the full capacity of today's ubiquitous networking environments, which allow wireless devices to interact via multiple network paths.…”

“…where ∀j ∈ [1,2], MRN@ ubiLETj is the ID of ubiLET j and, [net a ⊕ IP a1 , net i ⊕ IP i1 , net n ⊕ IP n1 ] is the set of network ID ⊕ IP addresses denoting the actual location of the device 3 .…”

“…Service-Oriented Computing (SOC) then introduces natural design abstractions to deal with ubiquitous networking environments [1]. Indeed, networked software applications may conveniently be abstracted as autonomous loosely coupled services, which may be combined to accomplish complex tasks.…”

ubiSOAP: A Service Oriented Middleware for Seamless Networking

“…However, enabling service-oriented computing in pervasive networking environments raises key challenges among which overcoming resource constraints and volatility of wireless, mobile devices. This has in particular led to introduce lightweight service-oriented middleware [10,2,1,16]. However, to the best of our knowledge, none of the existing solutions comprehensively integrate the full capacity of today's pervasive networking environments, which allow wireless devices to interact via multiple network paths.…”

“…As a result, any networked device may seamlessly consume but also provide software applications over the network. Service-Oriented Computing (SOC) then introduces natural design abstractions to deal with pervasive networking environments [2]. Indeed, networked software applications may conveniently be abstracted as autonomous loosely coupled services, which may be combined to accomplish complex tasks.…”