Abstract:
BACKGROUND:Increasing interest in digitally enhanced drug delivery tools urges both industry and academia to rethink current approaches to product usability testing. This article introduces mobile eye-tracking, generating detailed contextual data about user engagement with connected self-injection systems as a new methodological approach to formative usability assessment. METHODS:A longitudinal case study with a total of 35 injection-naïve participants was conducted. In three consecutive experiments, eye-tracking was applied to formative usability testing of a novel connected self-injection device. Three eye-tracking derived usability indicators were established to assess product effectiveness, efficiency, and ease of use. RESULTS:Analysis of the data revealed events of user hesitation, process interruption and unintended action, and these occurrences could either be completely eliminated or significantly reduced throughout the process (product effectiveness). At the same time, the overall use duration decreased from 86.1 to 58.7 sec (product efficiency). Analysis revealed that product modifications successfully guided user attention to those interface elements most relevant during each task, thereby improving product ease-of-use. CONCLUSIONS:The step-wise improvement in the usability indicators demonstrates that iteratively applying eye-tracking methods effectively supports the user-centered design of connected self-injection systems. The results highlight how eye-tracking can be employed to gain an in-depth understanding of patient engagement with novel healthcare technologies.
journal_name
Expert Opin Drug Delivjournal_title
Expert opinion on drug deliveryauthors
Lohmeyer Q,Schneider A,Jordi C,Lange J,Meboldt Mdoi
10.1080/17425247.2019.1563070subject
Has Abstractpub_date
2019-02-01 00:00:00pages
163-175issue
2eissn
1742-5247issn
1744-7593journal_volume
16pub_type
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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journal_title:Expert opinion on drug delivery
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