Final answer:
In a push system, production is driven by forecasts of sales rather than actual demand, differing from pull systems that respond to real-time orders.
Step-by-step explanation:
In a push system, the overall production schedule is based exclusively upon forecasted sales. The push system is part of traditional manufacturing and inventory management, where goods are produced in large quantities based on predicted customer demand and are then "pushed" onto the market. This stands in contrast to a pull system, where production is driven by actual customer demand. The agile and hybrid systems incorporate aspects of both push and pull, aiming to be responsive to market changes while maintaining efficiency.