由於全球各區域的經貿交流增加，全球金融與運輸管制的解除、通訊與生產技術的快速進步、專業分工與市場需求的多變，以及全球運籌管理觀念的演進等因素，使得企業開始邁向全球化發展。在未來的挑戰中，企業要如何有效的推行供應鏈管理規劃運作，快速有效率地回應顧客的需求，降低營運的成本，都將是企業能否提升競爭優勢的關鍵能力。
多階層上下游生產環境下整合生產配銷規劃問題是非常複雜的問題，但卻是供應鏈中重要的議題之ㄧ。特別是當規劃週期數及供應鏈之階層增加時，此問題的解題速度將更慢。然而，目前針對供應鏈產銷整合規劃問題的研究，大多探討生產配銷批量之決策，或只決定每一期之生產配銷來源，鮮少文獻針對跨期訂購作研究；而實務上，對於關鍵原物料掌握在少數供應商手中的產品，其下游廠商為因應滿足顧客要求，跨期訂購取貨是被允許的。
因此，本研究即針對供應鏈實際環境下的產銷整合模式，並採用以企業資源限制條件為基礎之遺傳演算法，在模式中同時考慮多時期、多成員的運作以，在採購或生產決策方面，允許各成員在訂單到期日前做跨期合併訂購之決策，以建構出一個能決定原物料以及產品之採購、製造、配銷的供應鏈最佳化模式。模式的設計從原物料供應商、製造商、配銷中心之間的運作，到透過混合整數規劃模式的建構，並以遺傳演算法求解現實情況所存在許多非線性以及整數型態的變數，最後，以求解品質與求解效率來衡量遺傳演算法之有效性。

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