With recent developments in information technology (IT) and multimedia tech
nology in the background, there is worldwide expansion in the deployment of
video-based information networks that use two core technologies, namely, v
ideo terminals, represented by videophones and videoconferencing systems, a
nd digital network ISDN as the communication platform. In this article, Vis
ual communication networks that utilize ISDN and video terminals will be co
llectively referred to as video-based information networks and an explanati
on will be made of representative business cases that use this technology w
ithin the education, medical and welfare fields. Specifically, new types of
multimedia services based on interactive Visual communication will spread
through video-based information networks within not just the education, med
ical and welfare fields but also various other business fields as well. (C)
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