Enneagrammet and their 9 different roles ...
"Show me your friends and I'll tell you who you are", says the proverb.
In most models for team and
personality types, distinction is made between seven to sixteen different groupings. The most comprehensive is the Myers-Briggs Type Indicator which has as many as sixteen role distinctions developed from the theories of the Swiss psychiatrist, Carl Gustav
Shortly after came classical astrology with its twelve signs of the zodiac, followed by the Sufi-inspired Enneagram with nine personality roles. The Danish professor,
Erik Johnsen, describes the same number - nine observed leader roles, and 27 sub-groups defined according to tasks.
The well-known Australian psychologist Meredith Belbin operates with
eight groups in his revised role understanding, as opposed to seven groups earlier.
The Hindu Shakra system describes seven levels of growth and self-realisation, which is the same
number as the seven categories of Transactional Analysis of "The OK boss". However, Carl Gustav Jung (1875 - 1961), the father of all personality tests, developed everything on the basis of his four mental and archetypal main roles.