Behind this surge, the development of information technology in human society provides technical support for the arrival of the era of big data, and the change of data generation mode is a crucial factor to promote the arrival of the era of big data. Specifically, the rapid development of cloud computing, big data and Internet of Things has opened the curtain of the third wave of informatization. The data in this stage is not only huge, but also fast and diverse. These characteristics * * * promote the arrival of the era of big data. The third information wave usually refers to the rapid development of cloud computing, big data and Internet of Things around 20 10, which started a new round of information process. This stage is characterized by the collection, analysis and application of massive data, as well as the widespread adoption of the service model based on cloud computing.