Answer: All workers are classified into one of 867 detailed occupations according to their occupational definition. To facilitate classification, detailed occupations are combined to form 459 broad occupations, 98 minor groups, and 23 major groups.
Step-by-step explanation:
The International Standard Classification of Occupations is an International Labor Organization classification structure for organizing information on labor and jobs. It is part of the international family of economic and social classifications of the United Nations.