The user-centered platform service model. From the book "Big Data Technology Fundamentals", we know that the core technology of the third phase of industrial big data is mainly a user-centered platform service model. Big data, or giant data, refers to the amount of information involved in the scale is so huge that it can not be achieved through mainstream software tools, in a reasonable period of time to capture, manage, process, and organize the information to help business decision-making for a more positive purpose.