Group collaborative editing is an activity by which people geographica
lly dispersed can edit the same document simultaneously. It makes use
of computers and network communication to provide an interactive and c
onvenient environment, so people can save much of their time and cost.
We have developed a group collaborative editing system which not only
allows participants to jointly view and process multimedia documents
but also provides real-time interactive conversation facilities to let
users feel realistic and friendly. This paper describes the concepts
of group collaboration and the mechanisms of our system. It also prese
nts the interface design strategy and the synchronization control meth
od.