Automated Situation-Aware Service Composition in Service-Oriented Computing

S.S. Yau, H. Davulcu, S. Mukhopadhyay, D. Huang, H. Gong, P. Singh and F. Gelgi
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S.S. Yau: Arizona State University, USA
H. Davulcu: Arizona State University, USA
S. Mukhopadhyay: Utah State University, USA
D. Huang: Arizona State University, USA
H. Gong: Arizona State University, USA
P. Singh: Arizona State University, USA
F. Gelgi: Arizona State University, USA

International Journal of Web Services Research (IJWSR), 2007, vol. 4, issue 4, 59-82

Abstract: 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 (SAW). 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 SAW requirements and the control flow graph, and (4) compilation of a-calculus terms to executable components.

Date: 2007
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