什么是产品结构树
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28.5pt"><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产品分解是制造业的基础工作</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">是企业产品管理主要工作之一。产品管理中</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产品对零件的需求量计算</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">即产品分解计算广泛用于产品生产计划编制、物资采购计划编制和新产品开发中。</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: "> </SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">企业生产多种系列产品</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产品结构很复杂</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">编制生产作业计划时</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产品分解是非常耗时的计算。若产品对零件独立需求</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">可用产品零件汇总表方式表示</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">;</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">若产品需求是相关需求</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">一般采用产品零件结构树来表示。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ˎ̥"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28.5pt"><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产品零件结构树是由产品装配系统图、产品零部件明细表</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">(</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">包括通用件、标准件、自制件、外购件、外协件、原材料</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">)</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产生。产品结构树以树状方式描述</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">树中各结点分别表示部件或组件</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">叶结点表示零件。这种图视方式反映了产品、零部件间层次关系。有了结构树</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">管理者即可分层展开</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">走不同的分支</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">直观地找到自己所要的数据</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">而不用考虑其物理位置。</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: "> </SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">每个零部件都有其属性</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">如零件的材料、重量、只寸、颜色以及部件由多少零件组成等。由于对象实例被分散地存放在网络中的若干结点上</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">为实现面向对象数据模型到关系数据模型的转换</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">将对象的描述属性转换为关系数据库中二维表信息</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">结构树的每个结点都连接着相关的零部件属性。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ˎ̥"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28.5pt"><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">每个零部件都有相关的文档</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">如各零件的二维图纸、三维模型、技术说明、各部件的装配图等。这些文件都存放在文件服务器内</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">一个企业可能有多个文件服务器</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">甚至有的文件服务器在异地。电子资料室是一逻辑单元</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">它连接数据库和文件系统</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">使描述零部件的文件信息与结点上的相关零部件有机地连接在一起</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">实现不同类型的产品数据管理</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">形成完整的产品结构化信息树。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ˎ̥"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28.5pt"><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">产品结构树要根据企业管理模式来决定。有的企业把一个系列的产品用一棵树表示</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ">,</SPAN><SPAN style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: 宋体; mso-ascii-font-family: ˎ̥; mso-hansi-font-family: ˎ̥">也有的企业一个产品就用一棵树表示。产品结构树层次要根据产品复杂程度决定。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 14pt; COLOR: #090909; FONT-FAMILY: ˎ̥"><o:p></o:p></SPAN></P>
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