The Parlay proxy manager-Architecture considerations
Andrew J. Bennett, Musa R. Unmehopa, Kumar V. Vemuri · Bell Labs Technical Journal · 2003
The Parlay/OSA standards enable service providers to safely expose, in a regulated manner, pre-packaged network service capabilities to a large body of external third-party application developers. The objective is to facilitate the rapid development and deployment of new applications that could significantly enhance the end-user experience and improve the revenue-generating potential. The Parlay/OSA model supports service sessions to permit client applications to connect to various services hosted by a Parlay or open service access (OSA) gateway. Framework services may be configured to enable a suitable distribution of load at a session level granularity among the various service instances. Finer granularity of request distribution and more reliable end-to-end service access may be achieved through support for proxy manager architectures. In this paper, we present schemes for load distribution and higher reliability, and proxy manager architecture alternatives. We then further extend the proxy concept to application mediation and cross-protocol, cross-domain service reuse. © 2003 Lucent Technologies Inc.