Group 1 - Private enterprises can participate in professional title evaluation if they meet certain criteria, such as having a strong technical capability and standardized internal management [1] - For private enterprises without evaluation authority, their technical personnel can apply for titles through designated service points or social organizations [2] - Professional titles are a key indicator of the academic and technical level of professional talent [3] Group 2 - Conditions for title evaluation include obtaining relevant vocational skill certificates and meeting work experience requirements, such as 2 years for assistant titles, 3 years for intermediate titles, and 4 years for senior titles [4]