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...........
