隨著全球化經濟成長的驅動，台灣各產業在營運管理上正面臨著嚴峻的考驗。使各企業的經營策略對外須想方設法來縮短產品開發時程，爭取送樣時間並提高其成功率以滿足客戶多樣性的需求；對內則藉由成本管控來提升營運績效。然而企業在成本管控上，除有賴各部門撙節支出嚴格控制預算花費外，對於如何有效執行存貨管理也是企業成功經營的一門哲學。 本研究旨在探討個案公司如何在這樣的產業環境下，對過去原有的請購、採購與供應商進貨作業流程所產生出存貨價值超出公司設定KPI的問題，應用六標準差手法，重新調整作業流程與逐項展開DMAIC步驟，實際應用在個案公司存貨改善上。藉由DMAIC來分析、改善並規劃新的作業流程，依新流程驗證應用DMAIC是可將存貨價值控制在個案公司設定的績效指標內，並有效降低個案公司庫存，進而提升公司整體營運績效與企業競爭力。 ;With the thrive of global economics, Taiwan corporations are currently confronting severe challenges on operation management, which drives them externally to shorten the NPI schedule so as to meet customers′ diverse demand, and internally to control cost to increase business revenue. However, successful operation management of internal cost control no only relies on strict budget limit of each department, but also on effective inventory value control. This research aims to study how company A to readjust operation procedures with Six Sigma Method by utilizing its core tool of DMAIC to literally improve inventory value which is out of company’s KPI incurred with the inappropriate procedures of materials purchase requisition, purchasing, and move-in. DMAIC will help optimize Company A’s operation procedures, control inventory value within target KPI, decrease practical stock, and accordingly increase business performance and competitiveness.
