Page 16 - JobsPlus - Occupational Handbook

Structure and format of the
handbook
The Occupational Handbook is organised in a four-level hierarchically structured classification. The 246 occupational sheets form the most detailed level of the classification structure and are aggregated by the International Standard Classification of Occupations (ISCO-08), based on similarities at skill level required for the jobs. However, the classification used is tailored to meet national requirements and contexts.
Coding
The coding of the Occupational Sheets in this Handbook is based on ISCO-08’s four-tiered hierarchical arrangement of occupational groups with successive levels of disaggregation:
• Major categories: Each broad occupational category has a unique one-digit code number.
• Sub-Major groups: Each sub-major group is subsequently assigned a unique two-digit code number and is composed of one or more minor groups. The first digit of this code indicates the
major category to which the sub-major group belongs.
• Minor groups: Each minor group consists of a unique three-digit code number. The first two digits
of this code indicate the major group and sub-major group to which the minor group belongs.
• Occupational Sheet (Unit Group)1: Each occupational sheet has a four-digit Occupation Code.
1 This handbook makes use of the term Occupational Sheet rather than Unit Group.
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