POS System for Sina Auto Repair Dubai
Case study no . 2
Project Overview
Sina Auto Repair needed a simple system to collect customer phone numbers, enabling them to manually send promotions via messages or WhatsApp.
Project type: UX/UI, POS Web Tool
​Case study timing: ~1 week
​Role: UX/UI Designer, Researcher
​Tools: Wix, Figma
THE DESIGN BRIEF
PROBLEM
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Sina Auto Repair relied on traditional word-of-mouth and manual follow-ups to retain customers.
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They wanted a better way to stay connected with customers, but didn’t want to rely on UAE telecom promotional SMS plans (which add the "Ad" tag and often land in spam).
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The team needed a direct, organic, and trustworthy channel to engage customers and build loyalty.
PROJECT GOAL
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Design a simple system to collect customer phone numbers during visits.
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Enable the garage to send personalized messages via WhatsApp/SMS (e.g., welcome notes, service reminders, or promotions) in a way that feels natural and avoids the “spam” perception.
Process
In this section
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Research & Requirements
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Design Decision
Research & Requirements
The main requirement was a simple webpage where customers could quickly enter their name and phone number while visiting the garage. From the business side, Sina also needed a lightweight internal application with:
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A list of all collected contacts for quick reference.
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A template manager where they could pre-write promotional messages (to save time) or send fully custom messages.
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A settings area for editing details like the sender’s name or the business’s website link.
The focus was on speed and efficiency, ensuring staff could collect and use customer information without technical barriers.
Design Decisions
My design principle was “the simpler, the better.”
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Customer-facing page:
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Only two text boxes (Name + Phone Number) to avoid confusion.
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A single, large Submit button for easy interaction on a tablet.
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Internal application (for staff):
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Contacts List: a clean, scrollable list of all names and numbers.
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Message Settings: ability to quickly update details such as the name or business URL that appear in messages.
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Template Messages: ready-to-use text snippets to make sending promotions fast and consistent, while still allowing ad-hoc messages.
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Contacts Page
Settings Page
Templates Page
Outcome & Reflection
What I Learned
This project helped me understand how important it is to keep things as simple as possible when designing tools for real-world use. The POS system needed to be quick, clear, and usable by anyone, even with minimal tech experience. I also learned how thoughtful structuring, like separating customer and staff interfaces, can make a system both functional and stress-free to use.