10. The system of claim 9 , wherein if a result ID indentifying the lowest common leaf of the instance in the step result table and a result ID identifying the instance in the temporary step table are different no further step is taken and wherein if the result ID identifying the lowest common leaf of the instance in the step result table and the result ID identifying the instance in the temporary step table are the same, a new instance is created, by at least one data processor, and added, by at least one data processor, to the step result table.
10. The system of claim 9 , wherein if a result ID indentifying the lowest common leaf of the instance in the step result table and a result ID identifying the instance in the temporary step table are different no further step is taken and wherein if the result ID identifying the lowest common leaf of the instance in the step result table and the result ID identifying the instance in the temporary step table are the same, a new instance is created, by at least one data processor, and added, by at least one data processor, to the step result table. 12. The system of claim 10 , wherein the information identifying the real data comprises a result ID uniquely identifying the real data corresponding to each of the identified instances of the entities.