Beginner's Guide: Learn Data Analysis Methods and Play in the Workplace Data analysis is the process of collecting, processing and analyzing data to obtain valuable information to guide work. It helps to understand business progress and changes, locate problems, guide work direction, and measure work effectiveness. Data analysis is becoming more and more important to the development of enterprises. In various positions such as marketing, HR, consulting, and investment, it will become a core competency required by professionals. This article will explain how to improve data analysis capabilities to meet the needs of daily work.