<![CDATA[This study analyzes the implementation of Lean UX and its impact on user experience within marketplace and digital transaction platforms using a Systematic Literature Review (SLR) methodology. The PRISMA protocol was applied to identify, screen, evaluate, and synthesize relevant scientific articles. Searches were conducted via Google Scholar using Publish or Perish and the Boolean search strategy: ("Lean UX" OR "Lean User Experience" OR "LeanUX") AND ("Marketplace" OR "E-commerce" OR "Online Store"). In total, 130 articles were initially identified, with 15 final articles published between 2021 and 2026 selected following duplication removal, screening, eligibility, and quality assessment. The findings demonstrate that Lean UX is widely implemented in e-commerce, online stores, retail digital services, marketplace-like platforms, and digital transaction systems. The most prevalent Lean UX stages identified were creating minimum viable products (MVP), conducting experiments, and gathering feedback and research. The System Usability Scale (SUS) and the User Experience Questionnaire (UEQ) were the most frequently used evaluation instruments. Overall, Lean UX implementation contributed positively to usability, task completion efficiency, navigation clarity, and users’ perceptions of interface quality. However, variations in evaluation instruments and the predominance of prototype-based studies limited direct comparisons of effectiveness across platforms. This review offers a structured overview of Lean UX implementation patterns and their contributions to enhancing user experience in digital transaction platforms.]]>
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