Contents of the qualification is the basic requirements for the necessary knowledge, skills and abilities to engage in a particular occupation.

Professional qualifications include practitioner qualifications and licensing qualifications. Practicing qualification refers to the starting standard of knowledge, technology and ability to engage in a certain profession (type of work). License refers to the government's greater responsibility for certain social generality, the relationship between the public **** interests of the profession (type of work) to implement access control, so that according to law, independent practice or engaged in a particular profession (type of work) knowledge, technology and ability of the necessary standards.