Looks like this page:
http://www.arl.hpc.mil/special/cse.html
says "for the software platform once known as the Interdisciplinary
Computing Environment (ICE)"
...but it doesn't say what it is now, or if CSE supercedes ICE as a
favored TLA. Hopefully, somebody actually from ARL still listens in
here, and can chime in.
:-)
David C.