Deriving the Navigational Structure of a User Interface

Model-based approaches to user interface (UI) design typically focus on creating mappings between concrete features of the user interface design and abstract models of the tasks, users, and domain. Earlier research in this area has focused on widget selection, since this was considered to be the least complicated mapping to investigate. We take this work a step further, showing how the navigational structure of the user interface should be influenced by features of the task model. This relationship between the task model and the navigational structure of the UI is expressed as a set of formal rules, enabling automated design assistance and evaluation. A user interface design assistant (UIDA) is used to organise design alternatives based on formal notations for describing both the task and dialog structures and to provide designers with assistance on this.

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