Hi,
Thanks for your work on the Rules Engine David. I think there are many applications
for rule-based systems. I once worked on a small expert system shell for the french
equivalent of a mortgage company, although not in a J2EE environment. Rules were
expressed in a proprietary language, something simple enough to be used by a
non-developer with practically no training. The expert system shell parsed and
compiled the rule base, producing C source code for the corresponding inference engine
(mostly as a sequence of if..then.. statements, more modern engines would use a Rete
network). The advantage of rule based systems is that they allow experts in a given
field (who are ususally not developers) to generate complex business logic components
with no coding. In addition, rules can be stored in a database to be reused in
different contexts. I would say that there is a potential application for rule engines
each time you fill in a form on a website. The data you enter will usually be !
!
processed by a component that could have been efficiently generated by a rule-based
system. This is a huge market.
Cheers,
David.
-----Original Message-----
From: Tobias Frech [mailto:[EMAIL PROTECTED]]
Sent: 19 April 2001 10:14
To: [EMAIL PROTECTED]
Subject: Re: [JBoss-dev] Rule Engine Integration Available
Hi!
David Jencks wrote:
...
<snip>
...
> I've thought some about rules, but have no practical experience with them.
> I wonder if when you have a complicated set of interacting rules you tend
> to get unpredictable results?
>
> As I keep saying, more (specific) examples would be great.
I do not know if this fits, but one example of rules would be order
processing for a car manufacturer. We have a manucaturer here that has
thousands (!!!) of rules about which car options can be combined with
other options and which cannot be combined. These rules are quite
important for them, because they want to know if a car can be
manufactured BEFORE they try to do it :-) <offtopic> Also they could
find out which parts are not used any more or in only a very special
configuration. This can mean a great value to the manfacturer if they
can simplify their production palette. But finding out this kind of
stuff is really hard, believe me!</offtopic>
I can try to find out more about these rules if you like. But first
please tell me if this case may fit the rules engine which was
integrated.
Ciao,
Tobias
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