Final answer:
Walmart's vendor-managed inventory system is an example of an interorganizational information system.
Step-by-step explanation:
The system described in the question is an example of an interorganizational information system. An interorganizational information system is a system that facilitates the flow of information between different organizations or entities. In this case, Walmart's vendor-managed inventory system allows the company to communicate and collaborate with its vendors to optimize product flow and reduce store inventories.