1. A method comprising: providing global data of a manufacturer related to a product to a third party via a demand signal management system, the global data derived from master data and a taxonomy; collecting unharmonized data regarding the product; identifying unharmonized data to the third party via the demand signal management system; and receiving, at the demand signal management system from the third party, either a rejection or harmonized data, wherein the harmonized data is a version of the unharmonized data that has been harmonized as a function of the provided global data.