Satisfying requirements for pervasive service compositions

Cavallaro, Luca; Sawyer, Pete; Sykes, Daniel; Bencomo, Nelly and Issarny, Valérie (2012). Satisfying requirements for pervasive service compositions. IN: Proceedings : MRT '12 proceedings of the 7th workshop on models@run.time. New York, NY (US): ACM.

Abstract

Pervasive environments are characterised by highly heterogeneous services and mobile devices with dynamic availability. Approaches such as that proposed by the Connect project provide means to enable such systems to be discovered and composed, through mediation where necessary. As services appear and disappear, the set of feasible compositions changes. In such a pervasive environment, a designer encounters two related challenges: what goals it is reasonable to pursue in the current context and how to use the services presently available to achieve his goals. This paper proposes an approach to design service compositions, facilitating an interactive process to find the trade-off between the possible and the desirable. Following our approach, the system finds at runtime, where possible, compositions related to the developer's requirements. This process can realise the intent the developer specifies at design time, taking into account the services available at runtime, without a prohibitive level of pre-specification, inappropriate for such dynamic environments.

Publication DOI: https://doi.org/10.1145/2422518.2422522
Divisions: Engineering & Applied Sciences > Computer science
Event Title: 7th international workshop on Models@run.time
Event Type: Other
Event Dates: 2012-10-02
Published Date: 2012

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