Use errors and usability problems in relation to automation levels of medical devices.
Conference: ECCE 2009 - Designing beyond the Product - Understanding Activity and User Experience in Ubiquitous Environments, European Conference on Cognitive Ergonomics 2009, Helsinki, Finland, September 30 - October 2, 2009
This paper is a reflection on the role of levels of automation in medical device usability. The reflection is based on a comparison of results from two independent usability evaluations on dialysis machines (one newer and one older). Usability problems were found that could be traced back to the use interface design and automation level of the machines. The comparison showed that there was a difference in usability problem types at different levels of automation and a conclusion was that the usability aspect becomes even more important as the level of automation increases.
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ABSTRACT: In health care, the use of technical equipment plays a central part. To achieve high patient safety and efficient use, it is important to avoid use errors and usability problems when handling the medical equipment. This can be achieved by performing different types of usability evaluations on prototypes during the product development process of medical equipment. This paper describes an analytical approach for predicting and identifying use error and usability problems. The approach consists of four phases; (1) Definition of Evaluation, (2) System Description, (3) Interaction Analysis, and (4) Result Compilation and Reflection. The approach is based on the methods Hierarchical Task Analysis (HTA), Enhanced Cognitive Walkthrough (ECW) and Predictive Use Error Analysis (PUEA).HCI and Usability for Medicine and Health Care, Third Symposium of the Workgroup Human-Computer Interaction and Usability Engineering of the Austrian Computer Society, USAB 2007, Graz, Austria, November, 22, 2007, Proceedings; 01/2007
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