Combining situated Cognitive Engineering with a novel testing method in a case study comparing two infusion pump interfaces

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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.
Original languageEnglish
Pages (from-to)16-26
JournalApplied ergonomics
Volume55
DOIs
Publication statusPublished - 2016

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Infusion Pumps
Pumps
engineering
Testing
Process Assessment (Health Care)
nurse
Nurses
Outcome Assessment (Health Care)
interaction
performance
time

Keywords

  • METIS-315370
  • IR-99157

Cite this

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title = "Combining situated Cognitive Engineering with a novel testing method in a case study comparing two infusion pump interfaces",
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.",
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author = "R. Schnittker and Martin Schmettow and F. Verhoeven and Schraagen, {Johannes Martinus Cornelis}",
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Combining situated Cognitive Engineering with a novel testing method in a case study comparing two infusion pump interfaces. / Schnittker, R.; Schmettow, Martin; Verhoeven, F.; Schraagen, Johannes Martinus Cornelis.

In: Applied ergonomics, Vol. 55, 2016, p. 16-26.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Combining situated Cognitive Engineering with a novel testing method in a case study comparing two infusion pump interfaces

AU - Schnittker, R.

AU - Schmettow, Martin

AU - Verhoeven, F.

AU - Schraagen, Johannes Martinus Cornelis

PY - 2016

Y1 - 2016

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AB - 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.

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