從優化生產中的物流活動提高生產體係(ppt 39頁)

從優化生產中的物流活動提高生產體係內容簡介：
The concept of producing the necessary units in the necessary quantities at the necessary time is described by the short-phrase “Just-In-Time”.
JIT生產是:在必需時間內生產必需數量的必需部品的概念.
In building shoes: The necessary subassemblies of the proceeding process (uppers and bottoms) should arrive at the assembly line at the time needed in the amounts needed.
舉例說明:
在生產成品鞋的時候:製鞋所必需的部件(鞋幫和鞋底)要準時,準量,準型號地到達製造車間.
To rely solely on a central planning approach that instructs the production schedules to all processes simultaneously is not likely to result in a JIT process for all operations.
但是：單純地依賴計劃生產的方法,使所有工序同步生產，並不能完全實現所有環節的準時，準量生產.
The problem comes when a change is made either because the order changes or equipment breaks down.但是當定單有變化或設備出現問題的時候，就會發生一些問題：

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