Classification of Occupations
The CK uniquely combines
two major systems for classifying occupations: (a) the
interest-based system of Holland and (b) the interest
and worker trait-based system created by the U.S. Employment
Security System (USEC) for the Guide for Occupational
Exploration (U.S. Department of Labour, 1979). The Holland
system is based on his six personality types; the USEC
system is based on 12 interests and 66 work trait groups.
Jones (1980) combined these two systems, integrating
the best features of both. This combined system was first
used with Occ-U-Sort (Jones, 1981), a card sort system,
and later with the CK. Subsequent editions of the GOE
have used this integration by Jones (1980) when describing
how the GOE and Holland systems are related.
As a practical
matter, the combined system of the CK allows users to
relate their Holland personality type to groups of occupations
where the traits of the workers are similar with respect
to interests, aptitudes, temperament, skills, and abilities.
For example, a person having a high score for the Artistic
type is led to groups of occupations with titles like "Literary
Arts" and "Visual Arts". Under "Visual
Arts" he or she will find occupations like architect,
art teacher, graphic designer, painter, and photographer.
This makes more sense than other systems which, for example,
use letters and rely solely on interests or personality