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From: sdl@smpvax1.UUCP
Newsgroups: comp.lang.ada
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Date: 7 Apr 88 20:15:26 GMT
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;In response to Fred Yu's inquiry, you might want to pass along the following
;information.  Computer * Thought Corporation (in Plano TX) has been working
;on an Ada-based version of the S.1 Expert System tool, under contract to
;Teknowledge.  This is a large, EMYCIN-style system currently available in a
;C-based version, and previously sold in a LISP-based version (which is no
;longer supported).  This conversion effort has the goal of supporting the
;delivery of rule-based systems written using the S.1 Development System,
;without modification, on an all-Ada platform.  The only changes that users
;would be expected to make would be that any user extensions written in C
;would (of course) need to be re-written in Ada.
;
;This project has been underway for some time, and has turned out to be more
;difficult than was originally anticipated.  However, recently the Ada-based
;version has reached the level of being able to load and execute some
;existing knowledge bases.  Not all features of the tool are fully
;operational at this time.  Real-time issues have not been addressed.

What were the problems that made it more difficult than was originally
anticipated?  Does anyone know?

Daniel Lee
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