Intro
Solo project developing UX solutions for a complex operational system, including workflow design, information architecture grounded in user mental models, and application of core UX principles—visual hierarchy, prioritization, and minimizing cognitive load—within a high-pressure, multi-actor environment.
Project Overview
This project focuses on designing a café table & order management system for a busy urban environmen; High table turnover, continuous service all day, diverse customer base.
The project demonstrates UX planning and operational workflow structure , highlighting assumptions, user persona roles → applying UX principles to optimize efficiency, minimize errors, and support multiple users simultaneously.
System Assumptions
Usage Environment
Operational Workflow
Roles & Responsibilities
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Digital system.
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Web and mobile platforms.
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Personal tablet - individual log.
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Use the system while standing or moving.
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Real-time synchronization (consistent data).
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Access or update tables assigned to other.
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Actions can be interrupted/ resumed without losing.
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Multiple users collaboration.
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Waiters: Main end user
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Shift Manager: Occasionally
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Hostess: Assigns tables
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Cheff: See orders output
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Bartender: only bar area
Meet the Users: Persona Examples
Primary User
Secondary User #1
Secondary User #2
Secondary User #3
Indirect User #1
Indirect User #2
Persona Overview: Primary User
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Who👤→ New waiter, enthusiastic.
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Experience 🎓→ 0–1 year casual dining.
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Goals 🎯→ Learn quickly, avoid mistakes
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Typical Behavior 🧠→ Frequently asks questions; take a lot of notes
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Key Challenges 🏋🏻→ Easily stressed; forget steps; prioritizing
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Quote 💬→ “I don’t remember I’ll ask ; how is this works“
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UX Needs 🎨
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Clear status indicators, visual cues for priorities.
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Mental model design
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Easy review and correction of orders.
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Feedback
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Core Usability Principles
Cognitive Load Reduction
Visibility & Recognition
Error Prevention
Efficient Navigation
Mental Model
Awareness & Attention
Potential Tradeoffs & Conflicts
Sync
Tech
Process
Input / Interaction
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Multiple users edit
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Users overwrite each other if synchronization fails
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Unclear active-user indication
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Internet instability
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Outdated table or order status
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Missed updates
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Special actions not applied
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Unconfirmed/ incomplete orders
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Accidental clicks
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Accidental actions
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Incorrectly spcial input
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Payment failure (external provider)
Expend View