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Expertise is the property of a person (that is, expert) or of a system which delivers a desired result such as rapid, pertinent information.

It generally implies large amounts of knowledge, and very good information processing speed ( fluency). Expertise comes with building experience especially in the pursuit of excellence.

In general terms, there are several synonyms for expertise, such as know-how, skill, competence or excellence.

Expertise levels may widely vary, depending on the specific domain of reality being considered.

Expertise is a form of power; that is, experts have the ability to influence others. Alvin Toffler's Powershift argues that the three main kinds of power are violence, wealth, and knowledge and, further, that these three kinds of power interact. Expertise is an important expression of the power derived from knowledge. Sometimes, expertise can override the other two forms of power. For example, the expertise of scientists may be deferred to by the military, whose power rests on violence (or threat of violence). Similarly, the expertise of technicians may be deferred to by corporate executives, whose power rests on wealth.

See also:

• Cognition theory
• Cognitics
• Expert systemAn expert system is a class of computer programs developed by researchers in artificial intelligence during the 1970s and applied commercially throughout the 1980s. In essence, they are programs made up of a set of rules that analyze information (usuallys
• SkillSkills Skill is human (usually learned) ability to perform actions. Interpersonal communication Speech: Listening, talking, interpersonal communication, Nonverbal communication Literacy: writing, reading Motor skills Walking, Arts and crafts, Sport Miscel