1. A method executed by one or more computing devices for determining allied product information for products corresponding to product records stored in a computer-readable catalog structure including categories, the product records having attributes associated therewith, the method comprising: identifying, by at least one of the one or more computing devices, at least one first attribute of at least one first product record in a first category; identifying, by at least one of the one or more computing devices, at least one second attribute of at least one second product record in a second category; comparing, by at least one of the one or more computing devices, the at least one first attribute with the at least one second attribute by counting a threshold number of the at least one first attribute and the at least one second attribute that are common; resolving, by at least one of the one or more computing devices, a relationship in the catalog between the at least one first product record and the at least one second product record; and determining, by at least one of the one or more computing devices, whether the at least one first product record and the at least one second product record correspond to allied products based on the said comparing step and said resolving step, wherein determining comprises setting at least one product corresponding to the at least one first product record in the first category as allied with at least one product corresponding to the at least one second product record in the second category based at least in part on a determination that the threshold number exceeds a predetermined value; and saving, by at least one of the one or more computing devices, allied product data to a computer-readable record in the computer-readable catalog structure.