This document discusses the purchasing process and best practices for procurement. It defines purchasing as getting the right products at the right time for the right price, quality, and quantity. It outlines ethics in purchasing and the 5 R's - getting the right quality, quantity, price, time, and source. It also discusses purchase orders, different types of markets, discounts vs rebates, and purchasing policies around approvals, budgeting, bidding, and record keeping. The ordering system uses fixed intervals for groceries, soft drinks, and perishables.