Melisa Sánchez
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Digital Accessibility

My role: UX/UI Designer

Thesis

Tecnológico de Monterrey, 2024

Santander mobile banking app in front of the bank’s branding

2.2 billion people worldwide live with vision impairment.

Yet accessible digital banking remains a challenge for many people who rely on assistive technology.

Overview

A conceptual redesign of Santander’s mobile banking app focused on improving the banking experience for blind and visually impaired users. The project explored how accessibility principles and WCAG guidelines could create a clearer, more navigable, independent, and inclusive experience.

Problem

Blind and visually impaired users often face difficulties navigating and completing banking tasks because of accessibility barriers, such as unclear information hierarchy, limited screen-reader compatibility, difficult-to-identify buttons, and complex user flows.

As a result, they may depend on others to check their balance, transfer money, or confirm transactions, affecting their independence, security, and confidence.

User Persona

Illustrated portrait of Paris Baltazar

Paris Baltazar

Paris Baltazar is a 34 year old mobile engineer based in Querétaro. He has been blind since the age of 19 and relies on accessible digital experiences to navigate technology independently in his daily life.

“There is an experience bias that affects the accessibility of digital applications” — Paris
Accessibility User Persona & Customer Journey Map
User persona and customer journey map board

Benchmarking

Evaluated Banking Apps

  • BBVA
  • Santander
  • Nu

Operations

  • Add a new contact
  • Make a transfer
  • Find branches/ATMs

Objectives

  • Evaluate usability and efficiency
  • Assess security
  • Analyze accessibility
Benchmarking analysis boardBenchmarking analysis boardBenchmarking analysis board

Outcome

The redesigned transfer flow reduced completion time from 1:39 to 1:15, saving 24 seconds, while improving accessibility through clearer navigation and WCAG-informed contrast decisions.

Digital Accessibility — case study coverRedesigned app showing accounts and cardsRedesigned transfer flow tested at an ATMPresenting the redesigned login screen next to the project poster

Key Takeaways

Outcome chart — before and after comparison