Specification and Design of Interactive Multimedia Services for Broadband Intelligent Networks

Abstract

We describe a complete methodology for the creation of interactive multimedia services (IMM) over Broadband Intelligent Networks (IN), that covers all phases from verbal description of a service up to the point when the service is ready for deployment. The paper discusses alternatives for the distribution of the service logic in the IN/B-ISDN network elements as well as the specification of the messages flows across interfaces. SDL is used for the production of a formal description of the service which is mapped into a Service Logic Program and simulated with a Service Creation and Simulation Environment. Throughout the paper two services are used as running examples to demonstrate the proposed methodology: a Video on Demand (VoD) service which is a novel IN service and a Broadband Video Conference Service (B-VC) which is based on an existing implementation originally targeted for a TCP/IP network platform.

INSIGNIA: a pan European trial for the intelligent broadband network architecture

“…It was preceded initially by a textual service descriptibn stage whichwas followed by the production of formal service specifications by means of the Specification and Description Language (SDL) [18]. A detailed description of the INSIGNIA service development methodology can be found in [19].…”