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Reusing models and properties in the analysis of similar interactive devices

Reusing models and properties in the analysis of similar interactive devices

Variations between user interface designs are often relatively subtle and do not always become evident through even relatively thorough user testing. Notwithstanding their subtlety, these differences may be important to the safety or usability of a device. To address this, we are using model checking techniques for checking systematically a set of template properties that are designed to explore important interface characteristics. We have applied the approach to two devices designed to support similar tasks in a clinical setting (two infusion pumps). The analysis of the two infusion pumps provides solid evidence of areas of concern where redesign would reduce complexity and increase the reliability of the two designs.

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