MULTI-DIMENSIONAL TUPLE SUPPORT IN RULE ENGINES

A method to support multi-dimensional tuples in rule engines having rule engine executed by a processing device can evaluate facts in a working memory stored on a data storage device against a rule with repetitions. The rule engine may create a multi-dimensional tuple to hold a set of the facts that matches the rule. The multi-dimensional tuple has a set of elements and an index for each of the elements. Each element of the multi-dimensional tuple is a single fact or a tree structure for holding a set of facts of a repetition group that matches the rule with repetitions.