RIASEC theory and the hexagonal model:
Matching personalities to occupations
The SDS is a direct product of a theory of personality types and environmental models developed by John Holland.
The theory posits that all people can be categorized into six personality types:
The SDS measures the degree to which you resemble each of the personality types, producing a three-letter Summary Code that expresses the complexity of your personality.
According to Holland’s theory, the same personality types—Realistic, Investigative, Artistic, Social, Enterprising, and Conventional—also apply to work environments, and each environment presents its own specific qualities and challenges.
Because both personalities and occupations can be classified using the same system, you can use your three-letter Summary Code to locate occupations (or fields of study, or leisure activities) that correspond best with your personality and thus are most likely to satisfy you.