1. Education background: Investigate whether the applicant's education, degree, major and other information is true and whether it is related to the applied position.
2. Work experience: verify the candidate's work experience and position to find out whether his work ability and experience meet the requirements of the company.
3. Skills and certificates: confirm whether the applicant has relevant skills and certificates and whether it meets the position applied for.
4. Teamwork ability: Understand the candidate's performance and cooperation ability in the team and the relationship with colleagues.
5. Professional Ethics and Ethics: Learn about the applicant's professional ethics and ethics by communicating with his former colleagues, superiors or partners.