SRC Technical Note 1997-027

A Simple, Intuitive Hypermedia Synchronization Model and its Realization in the Browser/Java Environment

Jin Yu

This paper presents a simple and intuitive hypermedia synchronization model -- the Media Relation Graph (MRG), and an alternative implementation of the Hypermedia Presentation and Authoring System (HPAS), which is the testbed for MRG. Our model combines the power of both interval-based and point-based synchronization mechanisms. The new implementation exploits many rich features of commercial web browsers and reuses existing browser components, such as plugins and Java applets. (An overview of HPAS and its original Unix/C implementation can be found here.)

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