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Automated Situation-Aware Service Composition in Service-Oriented Computing

机译:面向服务的计算中的自动情境感知服务组合

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摘要

Service-based systems have many applications, such as e-business, health care, and homeland security. In these systems, it is necessary to provide users the capability of composing services into workflows providing higher-level functionality. In dynamic service-oriented computing environments, it is desirable that service composition is automated and situation-aware to generate robust and adaptive workflows. In this paper, an automated situation-aware service composition approach is presented. This approach is based on the a-logic, a-calculus, and a declarative model for situation awareness (SA W). This approach consists of four major components: (1) analyzing SAW requirements using our SAW model, (2) translating our SAW model representation to a-logic specifications and specifying a control flow graph in a-logic as the service composition goal, (3) automated synthesis of a-calculus terms defining situation-aware workflow agents based on a-logic specifications for SA W requirements and the control flow graph, and (4) compilation of a-calculus terms to executable components.
机译:基于服务的系统具有许多应用程序,例如电子商务,医疗保健和国土安全。在这些系统中,有必要向用户提供将服务组合到提供更高级别功能的工作流中的能力。在动态的面向服务的计算环境中,希望服务组合是自动化的并且可以感知情况,以生成健壮的自适应工作流。本文提出了一种自动情境感知服务组合方法。此方法基于a-逻辑,a-演算和状态感知的声明性模型(SA W)。该方法包括四个主要部分:(1)使用我们的SAW模型分析SAW需求,(2)将我们的SAW模型表示转换为a-logic规范,并在a-logic中指定一个控制流程图作为服务组合目标,((3 )基于SAW要求的a-逻辑规范和控制流程图自动合成定义情境感知工作流代理的a-演算术语,以及(4)将a-演算术语编译为可执行组件。

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