[mod.ai] Scheme, anyone?

RICHER@SUMEX-AIM.ARPA (Mark Richer) (06/10/86)

I have been asked to give advice regarding the appropriateness of using
Scheme for a development effort in Intelligent Computer Assisted Instruction.
Although this is partly a research effort also, a clear goal is testing
and installing the software in high school classrooms.  The hardware available
to this project is Hewlett-Packward workstations.

Admittedly I know little about Scheme.  However, my initial reaction is that
no advantages Scheme could provide over CommonLisp could offset the
disadvantages of using a language without a large user base for the
purposes of software development and installation.  CommonLisp
promises to offer portability (of course there are still problems, e.g.,
graphics) and a large user community, and has other obvious advantages 
because of the general acceptance of Lisp in the U.S. AI community.

I'd appreciate some feedback from people that are familiar with Scheme,
particularly if you have used it for developing a large AI-based system.
Can any argument be presented to justify the resources necessary to train
people in Scheme and build and maintain a system in this UnCommonLispLike
language? In other words, what is so special about Scheme compared to
CommonLisp?

Mark
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