The foundation of supporting big data business is data application. With the rapid development of big data technology, big data applications have been integrated into all walks of life, which is the foundation to support big data business. Operators have user behavior data from the underlying devices and network data from the upper layer. With these data, operators' big data can generate many services. There are mainly SQM, CSE, MSS and DMP.

Big data, or huge amount of data, refers to the information that involves so much data that it cannot be captured, managed, processed and sorted in a reasonable time to help enterprises make more active business decisions.

5V characteristics of big data (proposed by IBM): volume (mass), speed (high speed), diversity (diversity), value (low value density) and authenticity.

The structure of big data:

Big data includes structured, semi-structured and unstructured data, and unstructured data is increasingly becoming the main part of data. According to IDC's investigation report, 80% of the data in an enterprise is unstructured data, and these data increase exponentially by 60% every year.

Big data is just a representation or feature of the development of the Internet at this stage. There is no need to myth it or keep it in awe. Under the background of technological innovation represented by cloud computing, these data, which seemed to be difficult to collect and use, began to be used easily. Through continuous innovation in all walks of life, big data will gradually create more value for mankind.