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A WS-Agreement Extension for Specifying Temporal Properties in SLAS

 

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Opened Access A WS-Agreement Extension for Specifying Temporal Properties in SLAS
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Author: Müller Cejás, Carlos
Martín Díaz, Octavio
Resinas Arias de Reyna, Manuel
Fernández Montes, Pablo
Ruiz Cortés, Antonio
Department: Universidad de Sevilla. Departamento de Lenguajes y Sistemas Informáticos
Date: 2007
Published in: Congreso Español De Metaheurísticas, Algoritmos Evolutivos Y Bioinspirados, MAEB 2010, Valencia, Spain
Document type: Presentation
Abstract: Service level agreements (SLA) in service oriented architectures allow to regulate the service trading from providers to consumers. So SLAs must describe the agreement properties in a precise manner. WS-Agreement proposes a standard for describing SLAs to specify “which” service will offer and “how” it is offered. However there is another important question about services which is “when”. Temporality affects orthogonally to all aspects of a SLA (i.e. the entire SLA, functional or non-functional properties) and it is necessary to express more precisely the SLAs. WSAgreement identifies the necessity of specifying temporality on agreement terms but it does not describe how temporality must be expressed and, to the best of our knowledge, there is no extension of WS-Agreement that deals with that problem. Therefore we propose to extend the standard with a temporal XML schema to describe several validity periods that could be disjoint, non-disjoint, and/or periodical.
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URI: http://hdl.handle.net/11441/26356

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