A method of sourcing a piece of equipment or a replacement part includes preparing a part request record, providing a part source database, searching part source records in the database according to one or more search parameters associated with the part, part requestor or part source, creating a prospective part source list, and prioritizing the part source list by one or more indexing fields, to identify sources predicted to have the part at the best combination of quality, price, and other similar factors. A method of updating the indexing fields is also disclosed.