I目录1大数据产业链概述...................................................................................................................11.1大数据定义...............................................................................................................11.2大数据产业链图谱...................................................................................................11.2.1数据源...............................................................................................................21.2.2大数据硬件支撑层...........................................................................................31.2.3大数据技术层...................................................................................................41.2.4大数据交易层...................................................................................................71.2.5大数据应用层...................................................................................................81.2.6大数据衍生层....................