Final answer:
Responsiveness to customers' needs is not a cost of EDI. Buying or leasing hardware and software, training employees, and reengineering applications are costs associated with EDI.
Step-by-step explanation:
Responsiveness to customers' needs is not a cost of EDI. Electronic Data Interchange (EDI) is a computer-to-computer exchange of business documents, such as orders and invoices, in a structured format. While costs associated with EDI include buying or leasing of hardware and software and training employees to use the system, responsiveness to customers' needs is not a direct cost but rather a benefit of using EDI to streamline business operations.
Reengineering applications is also a cost associated with EDI. This involves modifying existing software applications to facilitate the electronic exchange of data between trading partners.