2. A computer based system to analyze a time based visual record of defined events comprising: a) means for storing, in a numerical order, audio/visual information regarding defined events and related textual information, b) a plurality of software defined entry paths for searching and retrieving the stored audio/visual information and related textual information including: 1) a first software defined entry path means for searching and retrieving selected audio/visual information, precursor, audio/visual information, responsive audio/visual information, concurrent audio/visual information, and related textual information regarding a selected event, 2) a second software defined entry path for searching a glossary of key words and for retrieving, audio/visual information and textual information related thereto, 3) a third software defined entry path for searching a relationship chart and for retrieving audio/visual images and textual information related thereto, and 4) a fourth entry path means for searching sequentially through audio/visual records, and c) output means for generating a set of displays of the retrieved audio/visual and textual information, whereby the display generated using the entry path allows the analysis, comparison and contrasting of the displayed audio/visual and textual information.
4. The computer based system of claim 2 wherein the defined activity is a repeated event of a selected subject wherein the subject is chosen from the group consisting of one or more species, living subject, organism, lifeform, living or non-living systems, organic or inorganic reaction and physical phenomena.