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<div class=Section1>
<p class=MsoNormal>Hello folk. <o:p></o:p></p>
<p class=MsoNormal>I am trying to work out the best way to use drools for an
application where I have :<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>A domain of @30 fairly complex policy rules each of
which has a Boolean outcome (Fired or Not)<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>-<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>A domain of @100 “audiences” who apply different subsets
of the policy rules and make their own “Decision” based on the policies that
have fired.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I am very keen:<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo4'><![if !supportLists]><span
style='mso-list:Ignore'>a)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>NOT to duplicate the Policy rules themselves<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo4'><![if !supportLists]><span
style='mso-list:Ignore'>b)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>To make mapping of audience & policy to decision as
simple as possible – ideally through a table<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo4'><![if !supportLists]><span
style='mso-list:Ignore'>c)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>To keep all decision data in the same repository for
uniform version control<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My thinking is that I’d have a flow, first execute the
policy rules as one group and save results in working memory and then use these
results in an audience-specific way.<o:p></o:p></p>
<p class=MsoNormal><br>
I get stuck at this second step as I cannot find a compact way to handle the
mapping of Audience/Policy to Decision. Logically what I need to achieve is as
follows. E.g. for audience 1, if policy 1 fires, we decide to refer. (If more
than one has fired, decline trumps refer).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>Audience
policy1 policy2
policy3 policy4 ...<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>audience1</span></b><span
style='font-family:"Courier New"'>
refer
refer decline
(n/a) <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>audience2</span></b><span
style='font-family:"Courier New"'>
(n/a)
decline decline
(n/a) <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>...<o:p></o:p></span></b></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Clearly I could do this outside Guvnor but then the UI would
be outside Guvnor & the data would be separated from the drools jcr repo.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I hoped to achieve a rule table as follows (fairly compact)
but this would require DISJUNCTION between cols<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>Audience
policy1 policy2
policy3 policy4 Action<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>audience1</span></b><span
style='font-family:"Courier New"'> true
true
refer<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>audience1
t</span></b><span
style='font-family:"Courier New"'>rue
decline<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'>audience2</span></b><span
style='font-family:"Courier New"'>
true
true
decline<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:36.0pt'><b><span style='font-family:"Courier New"'><o:p> </o:p></span></b></p>
<p class=MsoNormal>If I broke out a rule for every combination of audience and
policy this would get very long.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any smart ideas? Thanks in advance to anyone who spares the
time to think on this one!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Rich<o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>PS. I attempted to post this about
3 hours ago but believe I made a mistake. Sorry if it comes through as a
duplicate<o:p></o:p></span></p>
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