OSDA: Open Service Discovery Architecture for Cross-domain Service Discovery

Emerging service-oriented architectures are pushing towards on-demand and “on the fly” application and business process composition. In order to support service composition, the underlying infrastructure must provide a facility for on-demand discovery of services and service components. Discovery becomes challenging when services span different networks and/or discovery domains. For inter-domain discovery to be achieved independently of domain-specific service discovery technologies, a middleware is needed to interface between the different discovery systems. In this paper, we present a novel Open Service Discovery Architecture (OSDA) designed to serve as an efficient, scalable, and programmable middleware for cross-domain discovery. We demonstrate the implementation of OSDA using a set of mature technologies.