Evan H. Magill, Simon Tsang, and Bryce Kelly. The feature interaction problem in networked multimedia services: Past, present and future. EPSRC No. GR/K 72995, October 1996, http://www.comms.eee.strath. ac.uk/~fi/fimna.html.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....extension of telephony. I recommend attacking the problems of telephony first because they are extremely difficult in themselves, yet have a certain familiarity and coherence that may enhance intuition. Better to solve these first and then extend the results to multimedia (which appears possible [18]) than to attempt everything at once and get nowhere. 3. Overview of Voice Transmission This section is an overview of the voice transmission machine. The information in it is necessary for two reasons: 1) the call processing function of the customer oriented telephony machine consists of ....

Evan H. Magill, Simon Tsang, and Bryce Kelly. The feature interaction problem in networked multimedia services: Past, present and future. EPSRC No. GR/K 72995, October 1996, http://www.comms.eee.strath. ac.uk/~fi/fimna.html.

....systems, an internal call of the DFC architecture would have to be generalized to something that has any number of transmission channels in either direction, with each channel of selectable bandwidth and with the collection of channels variable over time. A recent study of multimedia services [Tsang et al. 97] has concluded that many multimedia services and feature interactions are very similar to those in telephone systems. This bodes well for the relevance of the DFC architecture. For example, two multimedia subscribers may become connected and then request additional 17 bandwidth. If the initial ....

Simon Tsang, Evan H. Magill, and Bryce Kelly. The feature interaction problem in networked multimedia services---present and future. BT Technology Journal XV(1):235-246, January 1997.

....which makes customer programmability a frightening prospect. This stalemate has persisted for a long time. 3.9. The expected advent of widespread multimedia services These include video conferencing, electronic whiteboards, telemonitoring, video on demand, and integrated voice electronic mail [Tsang et al. 97] These services are not well understood. 4. Motivation for an architectural approach Of the pure specification approach, the information hiding approach, and the architectural approach, the latter seems to have the best characteristics for the telecommunication domain, in which modularity is ....

Simon Tsang, Evan H. Magill, and Bryce Kelly. The feature interaction problem in networked multimedia services---present and future. British Telecom Technology Journal XV(1):235-246, January 1997.

....Feature Composition (DFC) architecture has proven to be a valuable tool for elucidating these feature interactions, and for describing desirable global behavior without loss of feature modularity. 1. Introduction The stated purpose of Tsang, Magill, and Kelly s study of multimedia services [5,6] was to identify classes of service which tend to interact and provide guidelines for service providers on how to avoid feature interaction in the future. They identify the following as major sources of feature interaction in multimedia services: Voice feature interactions: Most causes of ....

Simon Tsang, Evan H. Magill, and Bryce Kelly. The feature interaction problem in networked multimedia services---present and future. British Telecom Technology Journal XV(1):235-246, January 1997.

....offering such as multimedia videoconference or chatline) In this paper we argue that this is insufficient, and that interworking between services must also be addressed. We know from experience in established architectures that the interworking of services can cause undesired behaviours [1,15]. A phenomena known as service interaction. Indeed initial studies have shown that service interactions are also a potential problem between interworking TINA based services [4] Even though the service interaction problem provides the motivation for our work, in this paper we will not be ....

S. Tsang, E.H. Magill and B. Kelly, The Feature Interaction Problem in Networked Multimedia Services - Present and Future, BT Technology Journal, Vol. 15, No. 1, January 1997, pp. 235-246.

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