From: owner-3dui@hitl.washington.edu on behalf of Martijn Schuemie
[m.j.schuemie@its.tudelft.nl]
Sent: Tuesday, November 30, 1999 7:11 AM
To: 3d-ui@hitl.washington.edu
Subject: Re: notation for 3D interaction techniques

Have you looked at:
Shamus Smith and David Duke, Using CSP to Specify Interaction in Virtual
Environments, Technical Report YCS 321, University of York, 1999

Another interesting one from these authors, where they use petri-net like
notations, is:

Shamus Smith and David Duke. Virtual Environments as Hybrid Systems,
Eurographics UK 17th Annual Conference, EG-UK99, pp 113-128, April 13-15,
Cambridge, UK : Eurographics UK Chapter.

You can download these documents and other from the author's website at:
http://www-users.cs.york.ac.uk/~shamus/pubs.html

To also mix in the discussion by kicking in an open door: I think it is
important to understand what you want to use the notation for. If you want a
notation that can automatically be converted into an imlementation, you'll
have different requirements than when you want a notation for describing a
technique to some people (who might then make the implementation). For the
later goal, you might not necessarily have to be complete in your
description, but you should be understandable (which, as noted by Jeff, is
somewhat of a problem in the UAN notation :-)

regards,
Martijn