Blockchain-Based Mobile App for Digital Identification of Older Adults in Rural Peru: Design and Usability Evaluation Study.
Wilver Arana-Ramos, Aldo Francisco Pastrana-Leon, Juan Carlos Morales-Arevalo
PMID 41628487WHAT IT FOUND
A prototype app for rural older adults in Peru achieved an acceptable usability score of 60.78.
Participants found the interface easy to use and secure, particularly valuing assisted registration and clear notifications, despite ongoing concerns about digital literacy and data trust.
Key findings
01The prototype achieved a mean System Usability Scale score of 60.78, which the authors interpret as acceptable usability for the target population.
02Participants specifically highlighted the intuitive interface, assisted registration process, and personalized notifications as positive features.
03Interviews revealed that anxiety surrounding cybersecurity and limited digital literacy were key barriers to engaging with digital services.
STILL TO COME
How it was doneWhat they found
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What it does not show
The study evaluated a prototype, not a fully implemented app in real-world clinical or service settings. The sample size was small (16 participants), which limits the generalizability of the usability findings. Most participants self-reported no visual or motor limitations, so the app's accessibility for people with disabilities was not rigorously tested. The authors note that formal ethics board approval was not required, which may affect the perceived rigor of the study design.
Declared interests
Funding was provided by the Dirección de Investigación de la Universidad Peruana de Ciencias Aplicadas (UPC) exclusively for the article processing fee. No additional funding was provided for the research activities, and the authors declared no conflicts of interest.
The easy way to misread this
Do not assume this app is proven effective for real-world service access. The study only tested a prototype's usability with a small group, and the authors state that confirmatory evaluation to quantify effectiveness is still pending.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →