电商系统需求分析说明书一．引言..........................................................................................................................................21。1 项目背景........................................................................................................................11.2 前期工作...........................................................................................................................11。3 参考资料........................................................................................................................1二．技术概述..................................................................................................................................12。1 目标................................................................................................................................12.2 硬件支持...........................................................................................................................1三．功能需求..................................................................................................................................23。1 功能块划分.....................................................................................................................23。2 功能块描述.....................................................................................................................2四．性能需求..................................................................................................................................24.1 数据精确度........................................................................................................................24.2 适应性...............................................................................................................................2五．系统流程图..............................................................................................................................25.1 顾客流程图如下................
