[RuleML-all] RuleML newbie question

Fri Aug 3 10:45:15 ADT 2007

Hey, thanks!

Now I can see the light. :D

  _____  

From: ddossot at gmail.com [mailto:ddossot at gmail.com] On Behalf Of David
Dossot
Sent: Wednesday, August 01, 2007 6:19 PM
To: Colnaghi Junior, Roberto (R&D Brazil)
Cc: ruleml-all at ruleml.org
Subject: Re: [RuleML-all] RuleML newbie question

Hi Roberto,

I think you got Var, Ind and label mixed. Here a version that, if the
ink level is equal to 30, report that ink level as being low.

<?xml version="1.0" encoding="utf-8"?> 
<RuleML xmlns="http://www.ruleml.org/0.9/xsd"
xsi:schemaLocation="http://www.ruleml.org/0.9/xsd
ruleml-0_9-nafdatalog.xsd "
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 <oid>
   <Ind>Ink Control Knowledge Base</Ind>
 </oid>
 <Assert>
   <!--  Implication: Ink is low level if Level is equal 30 -->
   <Implies>
     <head>
       <Atom>
         <Rel>LowLevel</Rel>
         <Var>Ink</Var> 
       </Atom>
     </head>
     <body>
       <Atom>
         <Rel>Level</Rel>
         <Var>Ink</Var>
         <Ind>30</Ind>
       </Atom> 
     </body>
   </Implies>
   <!--  RedInk is level 30  -->
   <Atom>
     <Rel>Level</Rel>
     <Ind>RedInk</Ind>
     <Ind>30</Ind>
   </Atom> 
 </Assert>
 <!--  Query: Find low level inks -->
 <Query>
   <oid>
     <Ind>Low Level Ink</Ind>
   </oid>
   <Atom>
     <Rel>LowLevel</Rel> 
     <Var>Ink</Var>
   </Atom>
 </Query>
</RuleML>

On 8/1/07, Colnaghi Junior, Roberto (R&D Brazil) <roberto.junior at hp.com>
wrote: 

Hi all, 

I'm still trying to figure out how to work with RuleML on NxBRE console
app.

I'm trying to build a simple Implication, feeding a single Fact and wish
to query it back.

After long hours of frustration I'm still not able to see the magic of 
it.

Can someone help me find out if the ruleml.0.9 file is correct?

Thanks in advance,
Roberto

<?xml version="1.0" encoding="utf-8"?>
<RuleML xmlns="  <http://www.ruleml.org/0.9/xsd>
http://www.ruleml.org/0.9/xsd"
xsi:schemaLocation="http://www.ruleml.org/0.9/xsd
ruleml-0_9-nafdatalog.xsd"
xmlns:xsi="  <http://www.w3.org/2001/XMLSchema-instance>
http://www.w3.org/2001/XMLSchema-instance">
  <oid>
    <Ind>Ink Control Knowledge Base</Ind>
  </oid>
  <Assert>
    <!--  Implication: Ink is low level if Level is less or equals 30 
-->
    <Implies>
      <head>
        <Atom>
          <Rel>LowLevel</Rel>
          <Var>Ink</Var>
        </Atom>
      </head>
      <body> 
        <Atom>
          <Rel>Level</Rel>
          <Var>Ink</Var>
          <Ind>30</Ind>
        </Atom>
      </body>
    </Implies>
    <!--  RedInk is level 30  -->
    <Atom>
      <oid>
        <Ind>Level</Ind>
      </oid>
      <Rel>RedInk</Rel>
      <Ind>30</Ind>
    </Atom> 
  </Assert>
  <!--  Query: Find low level inks -->
  <Query>
    <oid>
      <Ind>Low Level Ink</Ind>
    </oid>
    <Atom>
      <Rel>LowLevel</Rel> 
      <Var>Level</Var>
      <Var>Ink</Var>
    </Atom>
  </Query>
</RuleML>
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