Overview

This case study documents my experience as a Product Designer in the complete redesign of a legacy Point-of-Sale (POS) system for restaurants. Originally designed for PCs in the 1990s, the system was being used on iPads in 2024, leading to significant usability challenges. The project involved transforming an outdated, cluttered interface into a modern, intuitive, touch-friendly experience for waitstaff and managers, ultimately aiming to improve efficiency and user satisfaction.

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Main Task: Lead the UX/UI redesign of the entire POS application, addressing usability issues stemming from its age, platform shift (PC to iPad).

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Approach: Employed a user-centered design process, including research (stakeholder, market, field studies), iterative design, prototyping, and testing.

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Project Context: Worked on this project while collaborating with the client through an agency (referred to as "we" or "our team") Bright Inventions.

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My Role

Throughout this project, my responsibilities included:

• UX Research & Analysis: Conducting stakeholder interviews, market benchmarking, and field research (contextual interviews, observation) to understand user needs, pain points, and the operational environment.
• Problem Definition: Synthesizing research findings to clearly define the core usability issues and design challenges.
• Information Architecture & User Flows: Restructuring the application's navigation and flow for clarity and efficiency on a touch interface.
• Ideation & Design: Sketching concepts, creating wireframes, and designing high-fidelity mockups for key screens (floor map, order taking, dashboard, etc.).
• UI & Interaction Design: Defining the visual language, designing UI components, specifying interactions (including RTL support), and focusing on providing clear system feedback.
• Prototyping & Testing: Creating prototypes for user testing and iterating on designs based on feedback.
• Collaboration: Working with stakeholders and potentially developers to ensure design feasibility and alignment with project goals.

The problem

The existing POS system presented significant challenges:

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Outdated & Cluttered UI:

A 90s aesthetic with an interface crowded by functionalities, regardless of whether they were used by a specific restaurant.

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