WEB PROGRAMMING AND MOBILE DEVELOPMENT: UX/UI SOLUTIONS FOR PROTECTING USERS' PERSONAL DATA
DOI:
https://doi.org/10.28925/2663-4023.2025.30.992Keywords:
data privacy, UX/UI design, informed consent, Privacy-Embedded User Journey (PEUJ), user trust, personal data protection, web development, mobile development.Abstract
With the rapid expansion of digital platforms and the centrality of online services in everyday life, the issue of protecting users' personal data has become a critical aspect of human-computer interaction. Traditional approaches that reduce data protection to legal compliance and technical security measures have proven insufficient for ensuring genuine user privacy. This has led to the emergence of systematic UX/UI methodologies designed to integrate data protection principles directly into the user experience. The present study introduces an authorial framework – the Privacy-Embedded User Journey (PEUJ) – which unites contextual consent, proactive nudges, transparent data control, and iterative feedback loops. Experimental validation was conducted on three types of digital services (FinTech application, e-commerce platform, and health & fitness tracker), enabling the measurement of informed consent rates, user trust scores, frequency of privacy settings usage, incidence of excessive data sharing, user retention rates, and a composite Privacy-Usability Index (PUI). The findings reveal that the application of the PEUJ framework systematically increases informed consent by 22–35 percentage points, improves user trust by 18–28%, reduces excessive data sharing by 25–40%, and increases user retention by 8–12 percentage points. Particular attention is devoted to the role of embedding privacy interventions into key interaction points rather than relying on post-factum compliance, which is shown to enhance both user autonomy and business metrics. The study further highlights the potential of employing the Privacy-Usability Index (PUI) as a unified metric for evaluating and comparing privacy-focused UX interventions across domains. These insights underscore the importance of rethinking data protection as an integral element of user experience that ensures both ethical compliance and commercial viability [1, 2].
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