A method for using a rule-based system implemented by at least one physical processor to identify from a set of available products a group of products relevant to data provided by a user includes creating with the rule-based system a number of rules based on the data provided by the user, for each available product in the set of available products, creating a combined ruleset including the rules based on the data provided by the user and a number of rules characterizing the available product and determining with the rule-based system whether a conflict exists in the combined ruleset, and returning to the user the available products for which no conflict was found as the group of products relevant to the data provided by the user.