Print Email Facebook Twitter Combining situated Cognitive Engineering with a novel testing method in a case study comparing two infusion pump interfaces Title Combining situated Cognitive Engineering with a novel testing method in a case study comparing two infusion pump interfaces Author Schnittker, R. Schmettow, M. Verhoeven, F. Schraagen, J.M.C. Publication year 2016 Abstract We validated the usability of a new infusion pump interface designed with a situated Cognitive Engineering approach by comparing it to a reference interface using a novel testing method employing repeated measurements and process measures, in addition to traditional outcome measures. The sample consisted of 25 nurses who performed eight critical tasks three times. Performance measures consisted of number and type of errors, deviations from a pre-established normative path solution, task completion times, number of keystrokes, mental effort and preferences in use. Results showed that interaction with the new interface resulted in 18% fewer errors, 90% fewer normative path deviations, 42% lower task completion times, 40% fewer keystrokes, 39% lower mental effort and 76% more subjective preferences in use. These outcomes suggest that within the scope of this case study, combining the situated Cognitive Engineering approach with a novel testing method addresses various shortcomings of earlier testing methods. © 2016 Elsevier Ltd and The Ergonomics Society. All rights reserved. Subject Human & Operational ModellingHOI - Human Behaviour & Organisational InnovationsELSS - Earth, Life and Social SciencesPsychologyHuman-machine interactionInfusion pumpMedical device usability testing To reference this document use: http://resolver.tudelft.nl/uuid:fef94da5-0d2a-478e-a484-3d9dea7a36be DOI https://doi.org/10.1016/j.apergo.2016.01.004 TNO identifier 536218 Source Applied Ergonomics, 55, 16-26 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.