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Discovery Technique Overview

Naturalistic Observation (least interactive)

  • Observe the users


  • Self-report questionnaires

    • Close-ended items

      • Likert scales

      • Ranks

    • Open-ended items

      • Opinions

Focus Groups

  • Formal conversations with 5-7 users

Interviews (most interactive)

  • One-on-one interactions with the users

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Formative evaluation conducted early on in the design process with low-fidelity prototypes Summative evaluation conducted with high-fidelity prototypes or final interface The type of data we collect i


The goal of a novel design: will be better at meeting the needs of the users than the existing design Prototype: an early model of the novel design; manage resources; iterate on the design Low fidelit


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