二维码食品溯源系统项目建议书目 录第 1 章关于本方案..................................................................................................................2第 2 章概述..............................................................................................................................22。1项目背景......................................................................................................................22.2建设目标......................................................................................................................32.3建设原则......................................................................................................................3第 3 章需求描述及分析...........................................................................................................33。1概述..............................................................................................................................33。1。1 需求分析目标和任务.......................................................................................33.1。2需求分析组织方式...........................................................................................43。2需求描述......................................................................................................................43。2.1业务需求...........................................................................................................43.2.2接口需求...........................................................................................................53.2.3性能需求...........................................................................................................53.2。4安全需求...........................................................................................................53.2.5其它需求...........................................................................................................53。3需求分析........................................................