文档介绍：二维码食品溯源系统技术方案二维码食品溯源系统——目录关于本方案....................................................................................................................2概述................................................................................................................................2项目背景........................................................................................................................2建设目标........................................................................................................................3建设原则........................................................................................................................3需求描述及分析............................................................................................................3概述....................................................................................................................................................................................................................................................................................................................4需求描述....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................5需求分析..........................................................................................................