Jessica Theodor wrote most of
these pages, with some help from
Dave Lindberg
in the introduction and history of the data model and any complimentary remarks are his. Thanks to
Rob Guralnick for the help with
frames and JavaScript.
These sites were very useful in designing these pages:
Netscape Frames by Charlton Rose
Introduction to JavaScript, Part 6, Stefan Koch
5/1/96
Rob Guralnick and Jessica Theodor revised the model and added notation to the diagrams.
7/15/96