Final answer:
A manager wanting to know how many parts are in inventory would use an Inventory Management System, which tracks inventory levels and provides insights into production and sales.
Step-by-step explanation:
If a manager wanted to know how many parts were in an inventory, the type of information system that he or she should use is typically known as an Inventory Management System (IMS). An IMS is a computerized system designed to track inventory levels, orders, sales, and deliveries. It can be used in the manufacturing industry to create a work order, bill of materials, and other production-related documents.
For instance, in a factory setting, a manager can use the IMS to determine how many products are defective relative to how many are produced, where such data might be listed in a table within the system. These details can help in making informed decisions about inventory control, order fulfillment, and supply chain management. The goal is to maintain optimal inventory levels to prevent overstocking or stockouts.