The following material is expanded at the great resource site : BusinessBalls.com site.

The Johari Window model is a simple and useful tool for illustrating and improving self-awareness, and mutual understanding between individuals within a group. The Johari Window tool can also be used to assess and improve a group’s relationship with other groups. The Johari Window model was developed by American psychologists Joseph Luft and Harry Ingham in the 1950s, while researching group dynamics. Today the Johari Window model is especially relevant due to modern emphasis on, and influence of, ’soft’ skills, behaviour, empathy, cooperation, inter-group development and interpersonal development.
Sorry, it appears that Sketchcast has not been operational since August 2008.

The Four Quadrants:

1. what is known by the person about him/herself and is also known by others – open area, open self, free area, free self, or ‘the arena’
2. what is unknown by the person about him/herself but which others know – blind area, blind self, or ‘blindspot’
3. what the person knows about him/herself that others do not know – hidden area, hidden self, avoided area, avoided self or ‘facade’
4. what is unknown by the person about him/herself and is also unknown by others – unknown area or unknown self

Johari is a very elegant and potent model, and as with other powerful ideas, simply helping people to understand is the most effective way to optimise the value to people. Explaining the meaning of the Johari Window theory to people, so they can really properly understand it in their own terms, then empowers people to use the thinking in their own way, and to incorporate the underlying principles into their future thinking and behaviour.

© alan chapmanadaptation, review and code 1995-2008, based on ingham and luft’s original johari window concept.