Andrei, You should take a look at Drools Planner, which is designed to provide a framework for solving NP-hard problems using local search. I don't know how "user-friendly" you would consider it to be and there's no GUI, but it sounds like it may be a good fit for you.
David Faulkner david.faulk...@amentra.com<mailto:david.faulk...@amentra.com> ________________________________ From: rules-users-boun...@lists.jboss.org [rules-users-boun...@lists.jboss.org] On Behalf Of Andrei Neboian [andrei.nebo...@googlemail.com] Sent: Monday, March 28, 2011 5:03 PM To: rules-users@lists.jboss.org Subject: [rules-users] Using Drools to model and solve a production scheduling problem with changeovers Dear All, I am looking for a user-friendly platform which would allow me to model and solve a production scheduling problem with changeover times. Since it's an NP-Hard problem, I am getting convinced that a CP formulation would be most appropriate. Later on, a GUI should be designed to allow a user to interact with the model. Is "drools" a proper platform for this? Are there any examples of this type of problem solved with Drools? I need to tackle a problem with 4 parallel machines, over 100 jobs and 100 changeovertypes (sequence dependant setup times between each job). I would appreciate any help on this! Thanks Kind Regards, Andrei
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