WebCollab uses a client-server paradigm. The conference slides are diplayed in a client program. Users can either use the WebCollab application itself, or simply connect to one using a Web browser. In the latter case, the client program is dynamically loaded as an applet. Thus, apart from the person initiating the conference session, none of the participants need to install any software.
All interaction in the form of cursor pointing, LIVE POINTER and annotation is also done using the client. All clients connect to a server which manages client state information such as the current image and annotations, as well as the list of images that make up a conference session. The images themselves are served using standard HTTP protocol on a Web server.
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