Usage-centered design

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Usage-centered design is an approach to user interface design based on a focus on user intentions and usage patterns. It analyzes users in terms of the roles they play in relation to systems and employs abstract (essential) use cases^[1] for task analysis. It derives visual and interaction design from abstract prototypes based on the understanding of user roles and task cases.

Usage-centered design was introduced by Larry Constantine and Lucy Lockwood. The primary reference is their book.^[2]