給出了一種基于UML對XML Schema文檔進行輔助設計的方法，該方法將設計過程分為3個層次，即概念層、邏輯層和物理層。概念層使用標準的UML類圖對對象建模，邏輯層使用自定義的邏輯層UML類圖表示，物理層則用最終的XML Schema文檔表示。給出的邏輯層UML類圖充分利用了XML Schema文檔的嵌套結構特點，結構清晰簡明，經過一系列的轉換步驟，可以由概念層的UML類圖生成邏輯層UML類圖，并最終得到XML Schema設計。This paper presents a UML-based method for XML Schema design. The method includes three phases: conceptual, logical and physical level design. Standard UML class diagram is utilized in conceptual level, customized logical UML class diagram is utilized in logical level and textual XML Schema document is available in physical level. Fully taken consideration of the features of the XML Schema, the structures of the logical UML class diagram are concise. Through a series of steps, the logical UML class diagram can be translated from the original conceptual UML class diagram, thereafter the XML Schema can be available in a one to one manner.