. the plant, not the speed of the process
衡量指标 DTD
*Benefits 利益
.DTD时间改善以减少库存由较少的物料管理与库存结果较少几率 损 坏部品改善FTT
dock to dock time is improved by decreasing inventories which leads to less material handing and storage .this result in fewer opportunities to damage parts. There by improving first time through.
衡量指標(DTD)
出貨
成品 倉庫
生產製造過程
進料 倉庫
製造週期時間(MCT) 進料倉庫到出貨倉庫時間 (DTD)
進料
衡量指标-DTD
DTD – 從进料仓库到出貨仓库間时间
指原料進廠製成完成品準備出貨的時間
包含製造週期時間
DTD - 是衡量（时数）物料通过工厂的
速度，不是程序的速度
DTD is measure (in hours) of the speed of material through
.原物料变更成为产品构成
Raw material that is changed its product form
衡量指标 DTD
*何处 where ：2
.制程工作，包括物料在修理返工区域及全部缓衝区
Work-in-process (WIP), including material in repair rework areas, and all buffers
运委托制件.因为已经产品構成.
raw material-purchase part (control part) – begin counting when it is received in the plant .Even on consignment. Because it is already in its product from already in its product form.
精益生产的衡量指标
Lean manufacturing measuring
*进料仓库道出货仓库时间------
Dock to Dock
*首次合格率 ------
First time through
*依排成生产 ------
Build to schedule
*总何设备效率 ------
Overall equipment effectiveness
.总DTD时间为产品耗费时间如原物料，制程作业，与 在厂完成品出
货前在品的时间
the total dock to dock time for a product includes the time that a product spends as raw material, work-in process and as a finished product in plant, prior to being relaesed.
.改善DTD时间可增进能力支援OTD目标
improved dock to dock time leads to improved ability to support the order to
delivery (OTD) target. .减少物料管理，废弃，及库存搬运成本，全部可以改善总成本数Βιβλιοθήκη DTD FTT BTS OEE
进料到出货时间
Dock to Dock Time DTD
Dock to Dock Time (DTD)
*Definition 定义
.从原物料下货到完成成品出货之间的过去时间
the elapsed time between the unloading of raw materials and the release of finished goods for shipment
衡量指标 DTD
*为什么 Why:
.衡量生产库存週转的时间管理
.DTD日程越短则週转越快 .有效管理库存资金,降低生产成本 .快速对应顾客需求
衡量指标 DTD
*为什么 Why：
.DTD附加价值（实质）作业（value added operation） 仅量少分
.DTD 绝大部分时间是 无附加价值
.設置巨大緩衝區生產過多零件(增快製程速度)但是降低了物料速度
By building large buffers you produce more parts (increase The speed of your process ) but slow down the speed of materials.
lower material handing. Obsolescence. And inventory carrying costs all lead to improved total cost numbers.
衡量指标 DTD
*为什么 Why:
.工廠必須消除浪費與改變到顧客拉式系統
PLANTS MUST ELIMINATE WASTE AND MOVE TOWARDS CUSTOMER “PULL”SYSTEMS.
.減少庫存可以減少物料管理及儲存,結果減少損壞零件的機會.
decreasing inventories leads to less material handing and storage, which results in fewer opportunities to damage parts.
.等待 （wait）
.停滞（stagnation）
.缓行 （buffer）
.存储 （ storage）
.搬 运 （Transfer）
.检查 （Inspection）
.返工（Rework）
衡量指标 DTD
*何处 where :1 .原物料 - 购买的零件（管制部品）接收进入工厂开始计数.
.完成产品-所有完成品包含管制部品并入DTD计算直 到被 从马头交运
Finished goods end item products – all finished goods ontaining the control part are included in the DTD calculation until they physically shipped form the dock