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Fundamentals of 5
Interface Design
Learning Objectives
Introduction to Interface Design Principles for Designing a User Interface
User Experience and Ergonomics
Introduction to Interface Design
In India, the Unified Payments Interface (UPI) transformed the way millions of people make digital payments,
making transactions more accessible, safe, and simple for everyone. PhonePe, Bhim, Google Pay, and Paytm
have an intentionally simple and straightforward interface, appealing to consumers with varying degrees
of digital knowledge. With minimal payment steps, quick-access buttons, and language options, these
apps make digital payments simple, even for individuals new to mobile technology. By adapting the user
experience to the various needs of users, UPI apps demonstrate how smart interface design can make hard
operations feel natural and straightforward.
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