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Current wikis cannot be used to host or author rich dynamic hypervideos along with hypertext elements. In this article vi-wiki is presented as an approach for seamless and collaborative integration of interactive hypervideos into MediaWiki. Vi-wiki combines the wiki metaphor with a direct manipulation user interface for hypervideo authoring and particular markup conventions. The research makes a contribution to collaborative work and learning with wikis. It enables users to annotate spatio-temporal hyperlinks as well as composite sequential video clips through both, a graphical user interface and a generic markup language.

Motivation -Wikis are Web-based collaborative systems that allow users to create, share and interlink content. Existing Wikis restrict users to edit and arrange text with other embedded media formats. Unfortunately moving pictures are handled as a whole without considering their temporal dimension. Their timerelated composition and association with other parts of the wiki are withhold from the users influence. Thus, current wikis cannot be used to host or author rich dynamic and interactive hypervideos along with hypertext elements.