A distributed application for preemptive multitasking operationg systems
Welcome to the world of EMA Laboratory's Expert System Shell
Copyright (c) 1989 - 1996 Hans Groschwitz
All Rights Reserved
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ABSTRACT
EMA-XPS is a hybrid graphic expert system shell based on the
ASCII-oriented shell Babylon 2.3 of the German National
Research Center for Computer Sciences
(GMD). In addition to
Babylon's
AI-power (object oriented data representation,
forward and backward chained rules - collectable into sets,
horn clauses, and constraint networks) a graphic interface
based on the X11 Window System and the OSF/Motif Widget
Library has been provided.
To avoid collisions of the two programming techniques (event
oriented vs. procedural style), two separate programs solve
these different jobs. The first one works event
oriented. It initializes a bidirectional pair of interprocess communication channels
using one pseudo teletype (like xterm). In advance it
spawns a LISP-world containing the features of Babylon and
the extensions for interprocess communication.
In addition to the AI-features of Babylon it offers a task-processor.
For the input of knowledge specialized editors
have been realized. Additional support is granted by a
tracer. At session time a flexible and widely configurable
full-screen application and popup dialogs are available. The
user may choose to ask for explanations on the state of the
inference process. For information on how to use EMA-XPS at
run-time, an interactive help facility is provided.
Meanwhile the on-line documentation of the Babylon syntax is
offered this way, too.
Beginning with version 2.1 of EMA-XPS knowledge base files
of the shell ``babylon 3.1-beta'' from VW-GEDAS (which is no
more available) can be loaded, too. Those KBs are translated
into EMA-XPS style KBs at load-time (see the
release notes).
Additionally to the source distribution, currently static bound versions for
Linux 1.2 (AOUT) and SunOS 4.1 are available.
Both are linked with X11R6 and OSF/Motif 2.0 libraries and use Bruno Haible's
CLISP
interpreter.
WARRANTY
This software ships with !
INSTALLATION
User's Guide
Programmer's Guide
Programmer's Reference
Software Documentation
References (Literature)
Download the software:
Here is the source distribution of EMA-XPS.
This is the statically bound binary distribution of EMA-XPS for
Linux in
AOUT format. Your ELF kernel must support AOUT format to make it run!
This is the statically bound binary distribution of EMA-XPS for
SunOS 4.1.
It seems that it runs with Solaris 2.5, too. Anyway you should set up an
original X11R6 Xserver, and do not use the
openwin one!
Here you get a mirrored version of the
Babylon-2.3 LISP sources.
And here is a mirror of the CLISP
LISP interpreter's source. CLISP is
optimized in a way, that most native cc's might fail.
You should use the gcc instead!
Email (August 1996):
SnailMail: