"CDA Data Analyst Certification" is a set of scientific, professional and international talent assessment standards, divided into three levels: CDA LEVELⅠ, LEVEL Ⅱ, and LEVEL Ⅲ , The industries involved include the Internet, finance, consulting, telecommunications, retail, medical, tourism, etc., and the positions involved include big data, data analysis, marketing, products, operations, consulting, investment, research and development, etc. This standard is in line with the current global data science and technology trend, and can provide data talent reference standards for enterprises and institutions in various industries. The CDA data analyst industry standard is jointly formulated by industry experts, scholars and well-known companies in the field of data science on a global scale and revised and updated annually to ensure the publicity, authority, and cutting edge of the standard. Those who pass the CDA certification exam can obtain the CDA data analyst certification in Chinese and English.