This lecture is structured to be easily understood even by those new to data taxonomy. Data taxonomy design is essential when implementing CRM marketing tools like Braze, analytics tools such as Mixpanel and Amplitude, and MMP tools including Airbridge and AppsFlyer, and establishing their environments. By taking this lecture, you will learn industry-specific practical standards and application methods, enabling you to directly build data-driven marketing automation and accurate analysis systems. This is a practical guide that organizations working with data must take.