Final answer:
The purchasing system where a director makes most or all purchases for the entire organization is called centralized purchasing, which leverages buying power and ensures consistent procurement.
Step-by-step explanation:
The term that refers to the purchasing system in which a purchasing director for the entire organization makes most or all of the purchases is known as centralized purchasing. This system can help organizations leverage their buying power to negotiate better terms, obtain bulk purchase discounts, and ensure a consistent approach to procurement across the whole company. A centralized purchasing director is responsible for overseeing the procurement process, establishing purchasing policies, and ultimately, making purchasing decisions that affect the entire organization. The purchasing system where a director makes most or all purchases for the entire organization is called centralized purchasing, which leverages buying power and ensures consistent procurement.