Hypertext and hypermedia
Design for multimedia learning
Design for multimedia learning
Internetworking Multimedia
Interactive Remote Recording and Playback of Multicast Videoconferences
IDMS '97 Proceedings of the 4th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services
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The system for a web based multimedia distance education includes several features such as audio, video, whiteboard, etc, running on internet environment which is able to share HTML format. This paper describes a hybrid software architecture that is running on a web based distance education system which has an object with a various information for each session and it also supports multicasting with this information. It manages several classes of lecture course with GSM(Global Session Manager) and LSM(Local Session Manager). LSM is a lecture class in cyberspace. GSM has the function of controlling whole session when a number of sessions are open simultaneously, and LSM manages only own session. There are two approaches to software architecture on which distributed, collaborative applications are based. Those include CACV(Centralized-Abstraction and Centralized-View) and RARV(Replicated-Abstraction and Replicated-View). We propose a hybrid software architecture which is adopting the advantage of CACV and RARV.