A Framework for Multiple Service Discovery and Robustness

Y. Kono, S. Takada, and N. Doi (Japan)


software development, software tools, services, EAI


This paper proposes a framework that considers the corre spondence between a workflow activity and services from a two dimensional perspective. In the vertical axis, we con sider how a combination of multiple services may corre spond to one activity, and apply this to service discovery. Conventional work on service discovery has focused on finding a single service that satisfies an activity. But there may be no one-to-one correspondence, in which case we need to consider finding multiple services that put together will satisfy that activity. In the horizontal axis, we consider how several services may correspond to one activity. We apply this to increasing the robustness of a service-oriented system, by being able to switch between the service al ternatives. We have incorporated our framework within a workflow-based integration tool called WITH.

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