Abstract: The bill of material assist tool overcomes or alleviates the shortcomings of the prior art by providing a method and system for managing parts requirements processes, including generating detailed bills of material with key information necessary for component selection and generation and which indicates multiple sources for those components. The system includes a host system including a workstation; a server; a network connection for allowing the workstation and server to communicate; and a storage device coupled to the workstation. The system also includes a data storage device housing databases of parts information, procurement information, computer-aided drafting information, approved vendors lists, and bill of material files. One or more of these databases may be supplemented with or substituted by commercially provided databases and/or applications.