Istituto di Scienza e Tecnologie dell'Informazione     
Ter Beek M. H., Faconti G., Massink M., Palanque P., Winckler M. Resilience of Interaction Techniques to Interrupts. In: INTERACT 2009 - Human-Computer Interaction. 12th IFIP TC 13 International Conference (Uppsala, Sweden, 24-28 August 2009). Proceedings, vol. I pp. 494 - 509. (Lecture Notes in Computer Science, vol. 5726). Springer, 2009.
In many modern working environments interruptions are commonplace as users must temporarily suspend a task to complete an unexpected intervening activity. As users are faced with more and more sources of information competing for their attention, it is becoming increasingly important to understand how interruptions affect their abilities to complete tasks. This paper introduces a new perspective for research in this field by employing analytical, model-based techniques that are informed by well-established cognitive theories and empirical data available in the literature. We propose stochastic modelling and model checking to predict measures of the disruptive effects of interruptions to two well-known interaction techniques: Drag 'n Drop and Speak 'n Drop. The approach also provides a way to compare the resilience of different interaction techniques to the presence of external interruptions that users need to handle. The obtained results are in a form that allows validation with results obtained by empirical studies involving real users.
URL: http://www.springerlink.com/content/m86v12540g11/?sortorder=asc&p_o=50
DOI: 10.1007/978-3-642-03655-2_56
Subject Human Interruptions
Stochastic Process Algebra
H.5.2 User Interfaces. Evaluation/methodology
H.5.2 User Interfaces. Interaction styles (e.g. commands, menus, forms, direct manipulation)
68N30 Mathematical aspects of software engineering (specification, verification, metrics, requirements, etc.)

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