Hi, We are in the process of evaluating JBOSS Drools for our software and so far Drools found to be a perfect match for most of our requirements. Recently our customer has requested for a very interesting and important requirement and its synopysis is given below Rule LHS Condition 1 / Condition Group 1 (assoicated weightage is 20) Condition 2 / Condition Group 2 (assoicated weightage is 50) Condition 3 / Condition Group 3 (assoicated weightage is 30) RHS Rule Action / Output While calling the Rule Engine, the Rule Engine client will say "Give me all the Rule Output for the Rules matching 50% of the LHS" i.e. We need to know the percentage of LHS match in the RHS Using this percentage, we will call the Rule Action / Output Sample: if Condition 2 / Condition Group 2 and Condition 1 / Condition Group 1 are satisfied, then we need to have 70% (50% + 20%) match in the RHS. Thanks a lot for your help and time. -- Waleed Zedan SCJP 1.4 , CCNA _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users