Designing Usability into Medical Products

Wiklund, Michael; Wilcox, Stephen

doi:10.1201/9781420038088

Cited by 44 publications

(21 citation statements)

References 1 publication

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“…There are various commonly observed usability problems with medical user interfaces in ICU such as poor legibility or contrast, right-handed design, lack of templates and intelligence, poorly distinguished alarms and alerts, no support in local language and poor feedback about device state and behavior [6,27,43]. Such problems may contribute to medical errors.…”

Section: Fig 1 Ventilator System With Its User Interfacementioning

confidence: 99%

Usability Model for Medical User Interface of Ventilator System in Intensive Care Unit

Bhutkar¹,

Katre²,

Ray

et al. 2013

IFIP Advances in Information and Communication Technology

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Abstract.A usability model is a hierarchical structure encompassing the key elements such as users, user interface and interaction between them. It is a generic template which is independent of usability evaluation methods and provides flexibility for adaptation in different contexts and domains. In this paper, a usability model for medical user interfaces, especially for ventilator systems in Intensive Care Unit (ICU), is proposed based on Norman's actionoriented seven-step model to capture a related medical context. A ventilator system is a therapeutic device, which provides a respiratory support to critically-ill patients. Currently, a usability of user interfaces of ventilator systems is evaluated by typical usability evaluation methods from software industry. These evaluation methods miss out important elements in medical context. Therefore, a need for a specialized usability model for medical user interfaces is fulfilled with a proposed usability model encompassing vital elements such as medical user, user interface, ICU environment and time required. This usability model is validated first, through a human work analysis using videos of selected tasks with medical user interfaces and then, with an overview of critical factors affecting medical user interfaces in ICU. In future, a proposed usability model can be integrated with a suitable usability evaluation method for evaluating medical user interfaces to identify related medical usability problems more effectively.

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Section: Fig 1 Ventilator System With Its User Interfacementioning

confidence: 99%

Usability Model for Medical User Interface of Ventilator System in Intensive Care Unit

Bhutkar¹,

Katre²,

Ray

et al. 2013

IFIP Advances in Information and Communication Technology

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“…In medicine and health care, health systems researchers began noticing that avoidable errors were emerging not just because of the faulty design of instruments (15) or product interfaces (16,17) but because of insufficient communication and dysfunctional team processes at the organizational level (4,6,18). Medical informaticians began borrowing from the organizational practice of sociotechnical design (3) to improve the integration between humans and technology not just at the individual level but at the social (eg, care team and family) and organizational (eg, hospital, policy, and regulatory environment) levels (4).…”

Section: A User-centered Approach To Health Itmentioning

confidence: 99%

“…The actual analytic techniques used in this regard may differ depending on the specific aspects of the health domain problem in question. Cognitive techniques (7,10,11,15,16,19) may become more relevant when the objective is to evaluate the interface between users and the functional aspects of a health information system, whereas sociotechnical techniques (3)(4)(5)20) may become more relevant if the purpose is to improve organizational or sector-level outcomes.…”

Section: A User-centered Approach To Health Itmentioning

confidence: 99%

Outside the Box: Will Information Technology Be a Viable Intervention to Improve the Quality of Cancer Care?

et al. 2010

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“…This article reports on the perceived usability of the application overall and how it relates to important characteristics of the mCare cohort, namely behavioral health, mTBI and PTS status, technology (e.g., type of phone), environment (i.e., population size of the participants' community), and usage of the application. Although the TATRC team did not apply an iterative user-centered design model per se, 2 and this is not a usability test performed in a laboratory environment for the purpose of finding problems, 3,4 post-study usability evaluations such as this one provide important information on the translation and sustainment of new technologies into use outside of the scope of a study, from the perspective of users who have become 'experts' on the technology over time.…”

Section: Introductionmentioning

confidence: 99%

Usability of a Mobile Application for Patients Rehabilitating in their Community

Little¹,

Pavliscsak²,

Cooper³

et al. 2017

JournalMTM

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Background: A potential factor in adherence to use of mobile technologies is usability, yet this is rarely examined.Aims: This article examines the usability of a mobile application ("mCare"), provided to support injured Service Members rehabilitating in their communities, and assesses how usability ratings related to the users' background characteristics and usage of mCare.Methods: Data were from the intervention arm (n=95) of a 36-week, randomized controlled trial. Usability was measured with the System Usability Scale (SUS) (n=41) and semi-structured interviews (n=49). The analysis compared SUS scores by cohort characteristics, with t-tests and ANOVA. Interview responses were coded for valence. Pearson correlations quantified the association between SUS scores and usage.Results: Mean total SUS score was 78.0 [standard deviation (SD) = 21.1; ' A'], usability sub-score was 76.7 (SD = 22.9; ' A'), and learnability sub-score was 82.0 (SD = 25.0; ' A+'). SUS scores differed by mobile device type (p = 0.07) and living arrangement (p = 0.06). Participants with behavioral health problems, of older age, were Warrant Officers, and/or had a specific wireless carrier rated mCare lower, though these findings were not statistically significant. Interview responses provided insight into why SUS scores might have been lower in some cases. Higher usage was associated with higher total SUS scores (r = 0.46, p = 0.004). Conclusion:Overall, mCare was rated favorably. Higher usage was correlated with higher usability scores. Providers planning to use mCare with patients should consider patient's characteristics (e.g., type of mobile phone, living arrangement), as these could affect user experience.

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Designing Usability into Medical Products

Cited by 44 publications

References 1 publication

Usability Model for Medical User Interface of Ventilator System in Intensive Care Unit

Usability Model for Medical User Interface of Ventilator System in Intensive Care Unit

Outside the Box: Will Information Technology Be a Viable Intervention to Improve the Quality of Cancer Care?

Usability of a Mobile Application for Patients Rehabilitating in their Community

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