本文提出強化 Demand-pull 的緩衝管理模式， 提出一套較為嚴謹的法則與 程序使緩衝管理三要素更為簡潔，清楚與容易使用。另外透過修正 TDD、IDD 兩指標與增加 EVD 新指標，使供應鏈緩衝績效評估更加透明與有效。本論文所 提的強化觀念與方法經由實際個案的驗證，證明所提出的觀念與方法是可行且有 效的，與傳統的補貨策略做比較也得到較優的績效表現。
本研究雖對 TOC Demand-pull 緩衝管理與 TDD、IDD 做了強化探討，但是 對於強化 TOC Demand-pull 理論基礎仍有兩大問題值得有興趣的人士後續研究：
(1) TOC 建議庫存放在源頭，意即工廠。然而是不是每一供應鏈系統庫存皆 應放在工廠？如不是應放在哪裡最有效？TOC 並未有明確的解答。
(2) TOC 認為供應鏈要能成功運作必須所有成員能建立互信。TOC 提出上 下游成員要分別以 TDD (Throughput Dollar Day)與 IDD (Inventory Dollar Day)互相評估。然而如何做？TOC 並也未有進一步的說明值得後續研 究。
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附錄一 傳統存貨補貨之參數值
傳統的存貨補貨方面有 5 種模式，分別為永續盤存制的(s,Q)與(s,S)以及定 期盤存制的(R,S)、(R,s,S)與(s,Q,R)。在設定各種模式的參數之前，首先需要下列 的資訊：
(一) AVG = 產品的平均每日需求。
(二) STD = 產品每日需求的標準差。
(三) L = 從工廠到區域發貨倉庫的補貨前置時間。
(四) S = 每次訂購之固定成本。
(五) H = 持有一單位產品一天的成本。
(六) α= 服務水準。
永續盤存制的(s,Q)與(s,S)方面所要設定的參數為說明如下：
(一) s：再訂購點，公式為L×AVG+z×STD× L。 (二) Q：經濟訂購量，公式為
H S AVG×
×
2 。
(三) S：訂購上限，公式為max
{
Q,L×AVG}
+z×STD× L。在定期盤存制方面，本研究是每兩星期(R = 14)去檢視存貨的情況，但所驗 證的個案公司其每樣產品從下單開始需經過 30 天的生產時間以及 30 天的海運時 間，在不考量延遲的狀況下，將所有訂單的補貨時間統一設定為 60 天，意即今 天下的訂單在 60 天後將運送至區域發貨倉庫，由於檢視週期較補貨時間短，因 此原本定期盤存制S = AVG×
(
L+R)
+z×STD×(
L+R)
中的 R 將不計算在內，所以定期盤存制中所使用的參數 s、Q 與 S 與永續盤存制相同。
在 Demand-pull 模式中所要設定的參數為目標緩衝庫存量，其設定的方式為 累積補貨前置時間內的最大需求量，所以本研究將目標緩衝庫存量設定為每 60 天內的最大需求量。
s S Q R
淡季 旺季 淡季 旺季 淡季 旺季
E3200 113 151 158 196 120 153 14 E3600HRT3 253 336 274 336 163 188 14
E4000 281 415 344 444 217 276 14 E31003 218 311 325 409 225 273 14 R2600HRT3 481 616 481 616 196 228 14
R20003 961 1333 961 1333 461 564 14 R21003 644 853 644 853 357 420 14 R22003 227 322 279 357 177 211 14 T9500HRT 350 282 350 282 119 127 14 X6600HRT3 560 553 560 553 180 179 14
附表一 傳統存貨補貨之參數值