I've found a few items of information that may be of use in tracking
down this program.
EDGE (an acronym for Extensible Directed Graph Editor) was developed
in the early 1990s by Dr. Frances Paulisch while she was teaching at
the University of Karlsruhe, in Germany. Since Dr. Paulisch has since
left the university, the EDGE material has evidently been removed from
the university's ftp server.
While I haven't found an executable file, you can go here for the
source code, in C:
http://www.computing.edu.au/~geoff/ftp.html
(Click on "edge.tar.Z" to download the EDGE source code.)
Here is an old newsgroup posting that provides an excellent summary of
EDGE's capabilities, as described by Dr. Paulisch herself:
http://groups.google.com/groups?q=edge+%22graph+editor%22&hl=en&lr=lang_en&ie=UTF-8&oe=UTF-8&newwindow=1&safe=off&selm=1991Dec20.093917.26878%40infoserver.th-darmstadt.de&rnum=21
Dr. Paulisch has apparently been very cooperative with individuals who
have shown an interest in EDGE, so I suggest you email her for further
data.
The most recent business email address I could find for Dr. Frances
Paulisch is at the bottom of this page:
http://www.craiglarman.com/icse_ws_agile/cfp_icse_ws_agile.htm |