• Models of Supply chain
– Push-based model (build-to-stock)
• Schedules based on best guesses of demand
– Pull-based model (demand-driven)
• Customer orders trigger events in supply chain
– Sequential supply chains
• Information and materials flow sequentially from company to company
– Concurrent supply chains
• Information flows in many directions simultaneously among members of a supply
chain network
• Internet and Internet Technology make possible to move from sequential
supply chains to concurrent supply chains