User-Excentric Service Composition in Pervasive Environments

Ibrahim, Noha; Frénot, Stéphane; Mouël, Frédéric Le

doi:10.1109/aina.2010.129

Cited by 22 publications

(22 citation statements)

References 7 publications

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“…Service composition has been widely studied in the past, mainly in infrastructure-based and stable environments [4], [5], defining orchestration-based or choreography-based strategies relying on static composition descriptions, or devising dynamic composition approaches relying on a semantic description of services and on composition ontologies. Service composition is technically performed by chaining interfaces using a syntactical or semantical matching method.…”

Section: Related Workmentioning

confidence: 99%

Choreography-based vs orchestration-based service composition in opportunistic networks

Baklouti

Sommer

Mahéo

2017

2017 IEEE 13th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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Abstract-Pervasive networks formed spontaneously by wireless mobile devices capable of ad hoc communication make it possible to get services from these devices, and to compose them dynamically so as to provide people with new and more sophisticated application services. Discovering, invoking and composing services in such networks are challenging tasks, due to the numerous and unpredictable connectivity disruptions caused by mobility and the short radio range of wireless interfaces. By implementing the "store, carry and forward" principle, opportunistic networking and computing can help tolerate connectivity disruptions and support communication in such intermittentlyconnected networks.In this paper, we present a system we have designed to discover, to select, to invoke and to compose REST services dynamically in opportunistic networks. This system implements both orchestration-based and choreography-based composition strategies. In this paper, we compare these two techniques in two different scenarios: one involving nomadic people roaming in an open area, and another one involving people attending a sport event.

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Section: Related Workmentioning

confidence: 99%

Choreography-based vs orchestration-based service composition in opportunistic networks

Baklouti

Sommer

Mahéo

2017

2017 IEEE 13th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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“…Related is service composition middleware (SC) (see [25]), which combines services to provide particular functionality. This involves taking an application-level task (request) and mapping it to a combination of services [26].…”

Section: Service Composition and Adaptive Middlewarementioning

confidence: 99%

On middleware for emerging health services

Singh

Bacon

2014

J Internet Serv Appl

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Healthcare concerns have become diverse, ranging from acute and chronic conditions to lifestyle, wellbeing and the prevention of illness. Increasingly, individuals are taking responsibility for monitoring their own conditions. Healthcare technologies are increasingly used not only for administration, but also in specialist treatments and many forms of monitoring, including when a person is mobile. As well as formal interactions with professional carers and results from specialist procedures, care may involve ad hoc interactions with an individual's community. Together, these yield a wealth of data relevant in different contexts. Unfortunately, many existing healthcare systems are inflexible, singlepurpose, and self-contained, so that we cannot fully realise their potential. We believe that a framework for flexible interoperability of healthcare-relevant components is crucial, in a time of increasing need from an ageing population. We present a vision of pervasive, preventative and personalised healthcare. To achieve this we believe that the application logic embodied in components should be separated from the policy that specifies where and how they should be used-which may be in ways not contemplated by their original designers. Middleware should therefore provide a framework that supports not only traditional communication among components but also dynamic reconfiguration of components in response to circumstances that arise, with the management and enforcement of high-level policy integrated with the middleware. By this means, functionality for patients, carers and health administrators can be customised and provided as, when and where required. This paper explores middleware requirements and challenges arising from technology-and population-driven developments in healthcare provision. We describe the specific requirements that middleware must address, and present some practical steps towards addressing these from the initial stages of a middleware (SBUS).

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“…Service composition has been widely studied over the past years [1], [2], defining orchestration-based or choreographybased approaches relying on static composition descriptions, or devising dynamic composition approaches relying on a semantic description of services and on composition ontologies. Service composition is technically performed by chaining interfaces using a syntactical or semantical matching method.…”

Section: Introductionmentioning

confidence: 99%

Opportunistic service composition in pervasive networks

2017

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Abstract-Composing pervasive services can be a challenging task, especially in networks where connectivity disruptions are prevalent and unpredictable, such as in networks formed spontaneously by connected things. In this paper, we propose a REST service composing system for such networks. This system has been built upon an opportunistic computing middleware to support connectivity disruptions. It implements orchestration-based and choreography-based composition techniques, and uses intercontact time average as a metric to carry out the composition process.

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User-Excentric Service Composition in Pervasive Environments

Cited by 22 publications

References 7 publications

Choreography-based vs orchestration-based service composition in opportunistic networks

Choreography-based vs orchestration-based service composition in opportunistic networks

On middleware for emerging health services

Opportunistic service composition in pervasive networks

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