To address the identified issues, I approached the redesign of the e-boutique as a series of distinct user journeys (buying a smartphone, selecting a mobile plan, completing a purchase), each tackled through a consistent design process. For each journey, I started with lightweight discovery research, including competitor analysis and a review of e-commerce and telecom best practices, to identify common patterns, usability standards, and opportunities for improvement. Based on these insights, I designed wireframes to structure the flows and interactions, which were reviewed and validated with the client before moving into high-fidelity UI design. Shopping flow I reworked the smartphone and devices flow by introducing enhanced product cards, sticky filters, and a mobile-first optimized layout. On the product page, I implemented a split-column design and a sticky “Add to Cart” CTA on mobile, along with cross-selling modules and reassurance elements. To address a key pain point, I simplified the out-of-stock experience by allowing users to sign up for restock alerts without requiring account creation. For mobile plan selection, I introduced a visually simplified layout with distinct color cues and clearly organized packages based on price range and usage, making it easier for users to compare options and understand the purchase flow. Cart & checkout I optimized the cart page with a clear, right-aligned order summary and improved cost transparency through a highlighted pricing recap. The promo code interaction was made more fluid, and the Checkout call-to-action received a visual hierarchy upgrade to encourage completion. Error handling & transparency Across all journeys, I implemented a consistent approach to error messaging, focusing on clarity and guidance to help users recover quickly. Additional costs, such as delivery fees, were surfaced as early as possible in the flow to reduce friction and build trust.