I am not sure to understand your problem exactly, and espacially chat you intend to do, but it is likely because you don't declare the suitable criterion so the solution you have (could help if you post it too) is equivalent (according to the score you define) to the expected one... If I try to summarize, it is a bin-packing problem : you try to place 'as much tables as possible' in your 2 rooms by maximizing the global remaining space ? If yes, it should look like this : - rule(s) that check that tables can enter in the room post HARD constraints - rule(s) that count the unassigned tables and post SOFT (with big weight) constraints - rule(s) that compute the remaining space and post SOFT (with low weight) constraints I can't find these rules in what you sent (so may be I am completely wrong here). According to what I imagine and what I see, I think that you are confusing the planner violated contraints (which are objects to insert into WM under some conditions) and the LHS conditions (like those : length < $length, width < $width). A last thing not clear : you defines items with 2 dimensions, but it seems that you only have a 'size' attribute which is used as a number ... ----- Mail original ----- De: "Ricardo" <sprabakkar(a)gmail.com&gt; À: rules-users(a)lists.jboss.org Envoyé: Mercredi 20 Juin 2012 17:57:07 Objet: [rules-users] drools-planner drl file help Hi, My use case is 2 rooms and multiple table in various size, I want planner to organize the table in the available rooms in our case 2 rooms. room1 - 10x10 (length x width) room2 - 5x5 table1 - 5x5 (length X width) table2 - 2x3 table4 - 2x3 table5 - 7x4 table6 - 4x2 *my drl file as follows...* rule "requiredRoomSpace" when $room : Room($length : length, $width : width, $size : size) $requiredSizeTotal : Number(intValue > $size) from accumulate( Table( room == $room, length < $length, width < $width, $requiredSize : requiredSize), sum($requiredSize) ) then insertLogical(new IntConstraintOccurrence("requiredRoomSpace", ConstraintType.NEGATIVE_HARD, $requiredSizeTotal.intValue() - $size, $room)); end // ############################################################################ // Calculate score // ############################################################################ // Accumulate hard constraints rule "hardConstraintsBroken" salience -1 // Do the other rules first (optional, for performance) when $hardTotal : Number() from accumulate( IntConstraintOccurrence(constraintType == ConstraintType.NEGATIVE_HARD, $weight : weight), sum($weight) // Vote for http://jira.jboss.com/jira/browse/JBRULES-1075 ) then scoreHolder.setHardConstraintsBroken($hardTotal.intValue()); end */when i run the program...it assign all the tables into room1 only...I am not sure what went to wrong...help will be appriciated....if need more info ..I will provide.../* warm regards, ----- with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/drools-planner-drl-file-help-tp4018104.... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

... Should I repeat what Geoffrey told you in your previous thread ? Will you try again and again to post your project, hoping we will do your work for you ? I gave you the main ideas, first work with that, and come back with precise questions. ----- Mail original ----- De: "Ricardo" <sprabakkar(a)gmail.com&gt; À: rules-users(a)lists.jboss.org Envoyé: Mercredi 20 Juin 2012 19:23:17 Objet: Re: [rules-users] drools-planner drl file help you got me exactly where I am, I am bit confused using drools-planner, I gone through the user guide documents and example in the src download.... http://drools.46999.n3.nabble.com/file/n4018108/PlannerProject.rar PlannerProject.rar attached is my sample project, I am try to imitate the bin packing project. First I used with length and width only, I don't want to use the size attribute. with out the size attribute don't know how to use in drl. Attached zip file is the src for what I am trying to achieve. It would be grateful, if you see the code and guide me to clear my confusion. warm regards, ----- with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/drools-planner-drl-file-help-tp4018104p... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users