The Dreyfus Skills Acqusition Model is a model of the stages of learning. Author HubertDreyfus.
There are five stages identified.
See also http://en.wikipedia.org/wiki/Dreyfus_model_of_skill_acquisition
Example of the DreyfusModel in action:
Experts know how to deal with exceptions and don't need disclaimers, and beginners don't yet have the perspective or expertise to appreciate the exceptions.
taken from a comment on BusinessLogicDefinitionDiscussionTwo.
See also DomainExpert, SubjectMatterExpert