網路設計決策 u Facility role u Facility location u Capacity u Market allocation and supply allocation
網路設計影響因素 u Strategic u Technological u Macroeconomic u Political u Infrastructure u Competitive u Logistics and facility costs
Logistics and facility costs u 運輸成本 – 整車裝載(Full Truckload, TL) – 部分裝載(Less Than Truckload, LTL) u 存貨成本 u 設施成本 u 服務水準
回應時間與設施點數量關係 Response Time Number of Facilities
成本組成與設施點數量關係 Inventory Costs Facility costs Transportation Number of facilities
總作業成本與設施點數關係 Cost of Operations Total Costs Percent Service Level Within Promised Time Facilities Inventory Transportation Labor Number of Facilities
Network Optimization Models u Allocating demand to production facilities u Locating facilities and allocating capacity Key Costs: • Fixed facility cost • Transportation cost • Production cost • Inventory cost • Coordination cost Which plants to establish? How to configure the network?
廠址與倉儲配置決策模式 uyi = 1 if plant is located at site i, 0 otherwise uye = 1 if warehouse is located at site e, 0 otherwise uxej= quantity shipped from warehouse e to market j uxie= quantity shipped from plant i to warehouse e uxhj = quantity shipped from supplier h to plant i