KRAIHAN 8 HARLEY DAVIDSON_ KOMGROB KRAIHAN 8 CONCLUSION_ TUAN UYEN NGUYEN 8 REFERENCE: 9 Introduction The most important part in supply chain management is managing inventory as company operation tries to minimize cost from supplier, manufacturing, and production. Regarding to inventory, the management accounting must have understand the basic of inventory management. There are a numbers of techniques including: ABC system, EOQ model, TQM, and JIT system. All those several system are relating in