"CSCW Tele-Service creation with ISABEL"
Prof. Juan Quemada
Technical University of Madrid
| quemada |  |
dit.upm.es |
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Tuesday, July 28, 1998
2:00 - 3:00 p.m.
Prof. Juan Quemada
Technical University of Madrid
| quemada | |
dit.upm.es |
|---|
Tuesday, July 28, 1998
2:00 - 3:00 p.m.
ISABEL (http://www.dit.upm.es/~proy/isabel/index.html) is a customizable CSCW application designed to produce remote collaboration services over heterogeneous networks in the areas of Teleeducation, Telework, Telemeeting, Teleconference, ... ISABEL has been extensively used in real service trials, especially in the European Broadband Programs, such as the the RACE/ACTS Summer Schools or Global 360 Events which are probably the largest interactive collaborations made worldwide with coverage of North America, Europe and Asia.
ISABEL has been developed with three main goals:
ISABEL interconnects interactive sites over heterogeneous networks by means of flow servers which perform QoS (Quality of Service) adaptations of the information flows, for example different types of links including ATM-CBR at 2Mb/s, ISDN at 128 Kb/s and/or the internet can connect participants via a flow server to the same collaboration session.
ISABEL services are defined with a service definition language. Each service is defined as a set of interaction modes plus a management function. Interaction modes are particular set-ups of audio-video conferencing and shared workspace configured to support a given type of remote collaboration, such as a lecture mode, a panel/debate mode, ... of a teleconference service or a discussion/brainstorming mode, a co-editing mode, .... of a telemeeting service.
The talk will describe the design principles on which ISABEL is based, the service concept, its implementation and the approach taken to interconnect heterogeneous networks by means of flow servers.