Descripción
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Knowledge about the quality characteristics (QoS) of service com- positions is crucial for determining their usability and economic value. Ser- vice quality is usually regulated using Service Level Agreements (SLA). While end-to-end SLAs are well suited for request-reply interactions, more complex, decentralized, multi-participant compositions (service choreographies) typ- ically involve multiple message exchanges between stateful parties and the corresponding SLAs thus encompass several cooperating parties with interde- pendent QoS. The usual approaches to determining QoS ranges structurally (which are by construction easily composable) are not applicable in this sce- nario. Additionally, the intervening SLAs may depend on the exchanged data. We present an approach to data-aware QoS assurance in choreographies through the automatic derivation of composable QoS models from partici- pant descriptions. Such models are based on a message typing system with size constraints and are derived using abstract interpretation. The models ob- tained have multiple uses including run-time prediction, adaptive participant selection, or design-time compliance checking. We also present an experimen- tal evaluation and discuss the benefits of the proposed approach. | |
Internacional
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Si |
Nombre congreso
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10th International Conference on Service Oriented Computing |
Tipo de participación
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960 |
Lugar del congreso
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Shanghai, China |
Revisores
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Si |
ISBN o ISSN
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978-3-642-34320-9 |
DOI
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10.1007/978-3-642-34321-6_17 |
Fecha inicio congreso
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12/11/2012 |
Fecha fin congreso
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15/11/2012 |
Desde la página
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252 |
Hasta la página
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267 |
Título de las actas
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Service-Oriented Computing - 10th International Conference, ICSOC 2012, Shanghai, China, November 12-15, 2012. Proceedings |