by Plinio Thomaz Aquino Junior, Lucia Vilela Leite Filgueiras
Article outlines five types of user characterizations:
user role: the attributes of a type of interaction between users and the system
user profile: individual characteristics give generic differences among groups of users
user segment: marketing-based differentiations of the user market
extreme characters: radical personalities used to uncover use cases in new systems where there is nothing to test
personas: a few important classes of user, or 'classic users', that have goals (life, experience and purpose)
Important persona properties are what they do; what frustrates them; what satisfies them. Stakeholders can be non-user personas. Personas should be fed (with additional user info) throughout the development process.
Kind of expository article.
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