世界經濟的全球化、貿易的自由化、網際網路的蓬勃發展，物流（或稱運籌Logistics）已成為全世界關注的焦點。各製造商、批發商、零售商，均需透過物流功能來滿足顧客對產品的需求，自然而然形成一個物流供應鏈。對於消費市場日趨多變化、多元化的衝擊下，為了能及時做出適當、適切的反應，傳統的物流方式已不合要求。對於物流中心處理的時效性、正確性和配送方式，物流產業不得不進行革命與創新，期望使生產工廠與消費場所產生的距離感能夠拉近，且能增加新產品上市的速度已成為企業強化競爭優勢的武器，所以，做好物流工作以降低營運成本，並滿足顧客要求，提高顧客服務水準，是企業迎向二十一世紀爆炸性消費時代，永續經營的關鍵要素。
而物流的核心活動為倉儲及運輸，因此，倉儲營運績效的好壞，對於決定企業物流系統整合的成功或失敗，扮演了非常重要的角色。隨著環境的變遷，消費者意識抬頭，要求的是多樣少量的消費型態，使得物流中心每天要處理許多訂單，多數的物流中心仍需要大量的人進行人工揀貨部份，為了要能有效率的處理揀貨作業，如何規劃產品擺放的位置、以及揀貨員的揀貨策略，以期能在合理的時間內完成揀貨工作，以達到提高作業效率的目的，對於物流中心的營運績效、經營成本有著顯著的影響。
傳統物流中心內，揀貨作業所花費的時間佔了整個物流時間的30﹪至40﹪左右。因此，揀貨作業是物流中心整體營運績效好壞的指標作業。而揀貨區域規劃、與產品擺放位置的規劃都跟揀貨作業的效率有很大之關聯性。揀貨區域規劃的好，或者產品擺放位置適當都會提高揀貨作業的效率，揀貨區域的規劃與產品分佈方法受其倉儲環境因素影響甚大，選擇不同的倉儲環境與不同的產品擺放組合將會影響到後續揀貨員在執行揀貨作業的問題。
本研究主要就是針對物流中心內部訂單揀貨作業，倉儲設施區域之規劃，為主要探討重點，而探討對象以捷盟行銷物流中心之水平走道式倉儲為主，作一有系統的研究。針對特定時間內的所有訂單，利用不同的情境，模擬出不同的結果，藉此來判斷出在什麼情況下，以什麼方法進行揀貨可以獲得最好的揀貨結果。換句話說，就是將不同的揀貨區域佈置情境，以不同的揀貨區域排序方法、產品分類方法、訂單切割、揀貨路徑策略等，針對其個別揀貨作業之績效，求取最好的效果組合，藉由模擬軟體找出任一情境下達到最少行走時間、及最短行走距離目標的最佳組合。

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