The class of enumerations identifying occupations.
For example, the Standard Occupational Classification (SOC) system in the U.S. and the European Skills/Competences, Qualifications and Occupations (ESCO).
Class of concept schemes identifying occupations such as the Standard Occupational Classification (SOC) system in the U.S. and the European Skills/Competences, Qualifications and Occupations (ESCO).