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Parlay/OSA: From Standards To Reality
John Wiley and Sons Ltd, Jan 2006, Pages: 322
This book examines in-depth a new and growing technology for enabling a more rapid and cost-effective delivery of services based on telecoms networks. The book discusses issues with todays deployments of service architectures, and then evolves towards a Parlay/OSA (Open Service Access) solution. The authors explain the three main components of Parlay: Client Applications, Services and the Framework. The potential of Parlay is considered from a number of points of view: business need, service development and service deployment. Design considerations are evaluated, with a discussion of telecom providers carrier-grade expectations: scalability, reliability, high availability, fault tolerance, security, performance, overload engineering, failure handling. The book discusses how Parlay gateways and applications can straddle network boundaries and support the notion of federated networking, and how both end-users and services providers will benefit. The authors also discuss OSA/Parlay and XML-based technologies, covering Parlay WSDL (Web Service Definition Language) and Parlay X.
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