一、大数据“大”在哪目前为止,人类社会数据的产生方式经历了三个主要的阶段,正是数据产生方式的历史发展,成为大数据产生的根本原因。第一阶段,运营式系统阶段。在这一阶段中,数据是由于一定的运营活动发生记录而产生的,比如企业的销售或人员调动、学校的招生及教学活动等,此阶段产生的数据记录多是由组织 First, big data “big ” So far, the way of generating data of human society has gone through three major stages, which is the historical development of data generation and has become the root cause of big data. The first stage, operational system stage. At this stage, the data is generated due to the record of some operational activities, such as sales or staff transfer, school enrollment and teaching activities. The data records generated at this stage are mostly organized by the organization