13. A system for screening incoming data of a network, comprising: means for determining a relationship between a plurality of existing rules in a rule set of a rule based system used to screen the incoming data of the network, wherein the relationship includes a cause interaction and an effect interaction among the existing rules; means for creating a representation of the relationship including the cause interaction and the effect interaction; means for receiving a new rule to be inserted into the rule set; means for inserting a further relationship between the new rule and the existing rules into the representation to create a modified representation; and means for determining, based on the modified representation, if a conflict is created by insertion of the new rule in the rule set.
13. A system for screening incoming data of a network, comprising: means for determining a relationship between a plurality of existing rules in a rule set of a rule based system used to screen the incoming data of the network, wherein the relationship includes a cause interaction and an effect interaction among the existing rules; means for creating a representation of the relationship including the cause interaction and the effect interaction; means for receiving a new rule to be inserted into the rule set; means for inserting a further relationship between the new rule and the existing rules into the representation to create a modified representation; and means for determining, based on the modified representation, if a conflict is created by insertion of the new rule in the rule set. 17. The system of claim 13 , wherein each rule of the rule set is placed with a cause and an effect pairing making a rule node to create the cause interaction and the effect interaction.