[rules-users] Re: Re: Newbie: Is this feasible w/ Drools?

[Alexander Richter]

Edson,

Thank you for your prompt reply.
It's good to know that I can dynamically add rules to a rulebase.

With regard to a 'rule hierarchy', I'm actually referring to the fact  
that our assertions often build on each other. I'd really like to be  
able to define the rules only once, but be able to see the (sub-) 
rules and facts that make up an assertion.
E.g:
'Glutathione Biosynthesis' is asserted YES if we have both 'Glutamate- 
Cysteine Ligase' AND 'Glutathione Synthetase'.
'Glutamate-Cysteine Ligase' is asserted YES if we find any of 4  
different annotations (facts).
'Glutathione Synthetase' is asserted YES if we find any of 2  
different annotations (facts).

We need to see all assertions related to an annotation, all the way  
up the inference chain. Likewise, since we'd like to define the rules  
only once (in Drools), it's important to be able to see all the steps  
that made up the inference chain to 'Glutathione Biosynthesis'.

Thanks,
Alex

P.S. What's a POC?


> Date: Wed, 28 Feb 2007 21:17:25 -0300
> From: Edson Tirelli <tirelli at post.com>
> Subject: Re: [rules-users] Newbie: Is this feasible w/ Drools?
> To: Rules Users List <rules-users at lists.jboss.org>
> Message-ID: <45E61B95.8090603 at post.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>
>    Alexander,
>
>    Seems a really interesting project indeed!
>    Trying to answer:
>
> 1. I'm not sure what you mean by "rule hierarchy". Drools does not
> support rule "inheritence" if that is what you mean by hierarchy...  
> can
> you please ellaborate?
>
> 2. Dynamically adding rules to a rulebase will not force a full
> reevaluation. Only the new rules are evaluated and if they eventually
> have Patterns that may be shared, they are not even evaluated, as they
> already were.
>
>    The problem I think you will face is that Drools does not support
> uncertanty reasoning. You will need to code uncertanty by hand if you
> use drools. I suggest you a POC to check how it goes.
>
>    []s
>    Edson
> -- 
>  Edson Tirelli
>  Software Engineer - JBoss Rules Core Developer
>  Office: +55 11 3124-6000
>  Mobile: +55 11 9218-4151
>  JBoss, a division of Red Hat @ www.jboss.com