Systems and methods for mapping extension taxonomy elements to a standard base taxonomy and thereafter making use thereof are provided. According to one embodiment, a list of base taxonomy elements is displayed on a display device. A taxonomy map is also displayed on the display device. The taxonomy map includes information regarding one or more extended taxonomy elements of a reporting entity that are not mapped to any base taxonomy elements. Responsive to one or more user input events corresponding to a selection of a base taxonomy element and corresponding to a request to map an extended taxonomy element to the selected base taxonomy element, the compatibility of the selected base taxonomy element with the extended taxonomy element is validated. If the compatibility is affirmed, then an association is formed between the extended taxonomy element and the selected base taxonomy element.