Empowering cashiers with a faster, smarter point-of-sale experience

POS System

Category:

UI/UX Design, Prototyping

client:

Curbngo

year:

2020

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🔍 Overview

Redesigned Curbngo’s POS system to combine food-runner functionality with payments, inventory, and admin tools. Focused on speed, usability, and seamless cashier adoption.

Meet the "persona"

This is Sofia. She’s in the middle of a busy lunch rush, trying to ring in an order—but the screen in front of her has tabs, submenus, and more combos than she can count. She clicks through option after option, just trying to find “grilled cheese,” when the system suddenly freezes. Meanwhile, the line keeps growing and the pressure’s on.

🧠 Understanding the Problem

Cashiers using the old POS faced long queues, pressure, and confusing navigation during peak hours. The interface lacked clear structure, making it hard to find products quickly. Inconsistent visual elements and poor feedback increased the risk of mistakes, frustrating both staff and customers waiting in line.

Screen capture of the previous runner tablet used in stores. This image reflects the stakeholder’s original vision: to merge both functionalities into a single, new POS device.

🎯 The Objective

Create a POS interface that’s easy for cashiers to learn and fast to use, even during high-volume hours. The goal was to help them serve customers more efficiently by improving navigation, feedback, and layout clarity. For store owners, added admin tools reduced overhead and improved daily operations.

🛠️ The Process

I began with competitive research, exploring tutorials and walk-through videos from leading POS systems like Lightspeed, Oracle, Square, and Elo Touch. My goal was to understand how these platforms support speed, clarity, and ease of use—especially under pressure. Based on client requirements, I designed a split-screen prototype: the left panel functions as a food runner view but switches to a receipt summary once the cashier begins taking orders; the right panel allows for quick menu navigation and item selection.

To support fast-paced workflows, I sketched and wireframed various POS features, including menu management, checkout screens, clock-in flows, and payment methods. I tested and refined each interaction to reduce hesitation and make every tap feel intuitive—especially for new staff. The design aimed to streamline task flows, minimize errors, and keep the experience seamless even during busy rush hours.

User flowchart illustrating the ideal path for placing an order using the POS device.

Render mockup showcasing redesigned screens, including examples of the homepage, cart, menu grid, and modifiers grid.

✅ The Result

The new POS interface helped cashiers process orders faster, even during lunch or dinner rushes. Store owners reported fewer errors and quicker training times for new staff. The split-screen layout made it easier to handle multi-step tasks without losing focus. Everyone—from seasoned cashiers to weekend staff—felt more confident using the system.

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Video showing a sped-up walkthrough of the KDS redesign, highlighting various updated screens.

Photos showing the real-world context in which the POS device is used.