"CDA Data Analyst Certification" is a scientific, professional and international talent evaluation standard, which is divided into three levels: CDA Level Ⅰ I, Level Ⅱ and Level Ⅲ, involving Internet, finance, consulting, telecommunications, retail, medical care, tourism and other industries, as well as big data, data analysis, market, products, operations, consulting, investment and other jobs. This standard conforms to the trend of global data technology and can provide reference standards for data talents for enterprises and institutions in various industries. The CDA data analyst industry standard is jointly formulated by experts and scholars in the field of international data science and well-known enterprises, and is revised and updated every year, which ensures the openness, authority and cutting-edge of the standard. Those who pass the CDA certification examination can obtain the Chinese and English certification certificate of CDA data analyst. Similar to CFA and CPA, CDA is a compulsory certificate for data analysis industry.