It's easy to put all the Jess stuff in the CONTENT field and make the
LANGUAGE field 'Jess', and with the right interpreter the Jess theory will
be sent directly to the Jess engine. But this is just the beginning,
because there are other elements of the KQML language that can be exploited
for far more nuanced work. Let's not forget KQML was developed to work with
knowledge bases, so there are some means there to handle the functionality
you would expect from a distributed knowledge base (ASK-ONE, ASK-MANY,
IN-RESPONSE-TO, INSERT-ONE, DELETE-ONE, SORRY, EVALUATE, etc). And again
this is only the beginning, because it refers to singular messages, whereas
the more interesting work requires meaningful sequences of messages (or
conversations, as they call them), which is the work that Scott Cost and the
other folks at U of Maryland did with Jackal. And lastly, KQML can be
extended if one needs richer functionality.
KQML can work over RMI, or with JavaBeans, or using iBus, to enumerate a
few communication-layer possibilities. However, at the language level it's
important that Jess and KQML can be used together in meaningful ways. Some
folks use KQML with KIF, which I believe was the originally intended
marriage (by DARPA at least who sponsored both), but there is no reason for
not having a modus operandi for KQML and Jess. On the Jess side we need a
way of accessing and using remote facts (and rules) using KQML. Also we
need to be able to synchronize with the KQML messages sent and received. On
the KQML side we need to extend the interpreters so that the Jess-content
messages are routed to the proper Jess engine, in the proper format. A
correct, full implementation of KQML should not be too far from that last
part. Sorry, these are very simple thoughts, aimed to maybe starting a
discussion.
A comparison between FIPA's ACL and the Jackal KQML would show many
similarities. At that point one may want to consider that Jackal is
proprietary (IBM or the CIIMPLEX group), and that ACL may not have a full
implementation yet.
Alex George Bejan
----- Original Message -----
From: Ernest Friedman-Hill <[EMAIL PROTECTED]>
......
>
> A number of folks have mentioned on this list or in private email with
> me that they have use Jess with one of the various KQML
> implementations available in Java. It's apparently fairly easy to do.
>
.......
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