精實理念已應用於生產體系以減少浪費並增進生產力。漸漸地，此概念已廣泛地為各種不同的組織接受。然而，應用精實理念於產品的開發過程仍有其難度，特別是複雜的產品開發過程。原因是在各種任務之間具有高度的交互作用，使得傳統的價值流程圖不適合精實產品開發的應用。本研究的主要目的是利用設計結構矩陣作為精實產品開發過程的價值流程圖，分析過度生產、等待、運送、不適當的程序、不需要的存貨、不必要的動作和缺陷等七項浪費。本研究中以簡化的案例描述執行者如何利用所提出的方法於協同設計環境中減少浪費。

The concept of lean thinking has been applied in production systems to reduce waste and improve productivity. Gradually, the concept has been widely accepted by various organizations. However, there are difficulties in applying lean thinking to product development processes, especially in the complex product development process. This is due to the high-level interactions between tasks, which making traditional value stream mapping tools unsuitable for applications in lean product development. The main purpose of this manuscript is to apply the design structure matrix (DSM) as a tool for the value stream mapping in the lean product development process, where the seven types of wasteoverproduction, waiting, transport, inappropriate processing, unnecessary inventory, unnecessary motion and defects, are also analyzed. A simplified case study is used to demonstrate how practitioners can utilize the proposed method to reduce waste in the collaborative design environment.