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Interaction designers are trained to observe humanity and to balance complicated ideas, and are used to thinking in opposites: large and small, conceptual and pragmatic, human and technical.
This is not a jack of all trades. Instead, it is a shaper of behaviour. Behaviour is a large idea, and may, at first blush, seem too large to warrant a single profession.
But a profession has emerged nonetheless. This professional category includes the complexity of information architecture, the anthropologic desire to understand humanity, the altruistic nature of usability engineering, and the creation of dialogue.
