Digital media foundation refers to the process of learning and mastering the basic concepts, principles and technologies of digital media. It covers all aspects of digital media, including digital images, audio and video processing and coding, multimedia technology, network transmission and so on. The purpose of Digital Media Foundation is to understand and apply digital media technology, so as to create, edit and spread digital media. Data visualization refers to transforming data into a visual form through visualization methods such as charts and graphs, so as to better understand and analyze the data. The purpose of data visualization is to show complex data information in an intuitive and easy-to-understand way and help people find patterns, trends and correlations in data. Common tools for data visualization include data visualization software, programming languages and libraries.