A Semantic Based Framework for Supporting Negotiation in Service Oriented Architectures

2009 IEEE Conference on Commerce and Enterprise Computing Pub Date : 2009-07-20 DOI:10.1109/CEC.2009.17

M. Comuzzi, K. Kritikos, P. Plebani

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引用次数: 18

Abstract

Negotiation is required before invoking a service in order to identify how the invocation must occur in terms of functional and non-functional criteria. This process is possible when all the involved parties agree on the same negotiation protocol (e.g., bilateral negotiations). Considering a Service Oriented Architecture (SOA), this negotiation protocol cannot be predefined, but it must be selected by considering the negotiation capabilities of the involved services.In this work, we propose a semantic-based framework for supporting the negotiation in SOA. Specifically, the framework allows to express the negotiation capabilities of service requesters and providers and proposes a mechanism for discovering the negotiation protocols that can be enacted when a negotiation is required. To improve the flexibility of the framework, the concept of delegation is introduced to deal with the situation in which a party, that is not able to support the negotiation protocol, wants to participate in a negotiation. In this case, the negotiation can be fully or partially delegated to one or more other parties that, instead, are able to support the negotiation protocol.

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支持面向服务体系结构中协商的基于语义的框架

在调用服务之前需要进行协商，以便根据功能和非功能标准确定调用必须如何发生。当所有相关方同意相同的谈判协议(例如，双边谈判)时，这一过程是可能的。考虑到面向服务的体系结构(Service Oriented Architecture, SOA)，此协商协议不能预定义，但必须通过考虑所涉及服务的协商能力来选择它。在这项工作中，我们提出了一个基于语义的框架来支持SOA中的协商。具体来说，该框架允许表达服务请求者和提供者的协商能力，并提出了一种机制，用于发现在需要协商时可以制定的协商协议。为了提高框架的灵活性，引入了授权的概念，以处理无法支持谈判协议的一方希望参与谈判的情况。在这种情况下，可以将协商全部或部分委托给能够支持协商协议的一个或多个其他方。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2009 IEEE Conference on Commerce and Enterprise Computing

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