Concepts in UI Design & Figma, page 5
Usability Testing: Watch Real Users, Not Just Experts
Usability testing evaluates a product by observing real, first-time users interact with it, revealing flaws that designers often miss. It's used to validate design intuitiveness before launch.
The Design Critique: Improving Work with Focused Feedback
A design critique is a structured conversation to measure a design against its goals, not a session for subjective opinions. It helps get early feedback on feasibility or catch inconsistencies.
Mental Models: Design for What Users Believe
A mental model is the user's internal story of how your UI works, based on past experiences, not your design spec. This is why users expect your site to work like others they've used. The footgun is assuming users share your expert model; they don't.
Heuristic Evaluation: An Expert UI Review on a Budget
Heuristic evaluation is like having an expert proofread your UI against a checklist of common usability flaws. It's a fast, cheap way to catch problems before writing code, but its value depends entirely on the evaluator's skill.
Card Sorting: Let Users Design Your Navigation
Card sorting reveals your users' mental models by having them group topics. Use this to design intuitive navigation menus and information architecture. The footgun is testing with internal teams instead of actual users or subject matter experts.
Layout Grids: Your Blueprint for Consistent UI
Layout grids are visual blueprints for frames, enforcing structure and alignment. Use them to create consistent, responsive layouts for web and mobile. A common footgun is using fixed-width columns instead of 'Stretch' columns, which breaks responsiveness.
The 8-Point Grid: A Shared Language for UI Spacing
The 8-point grid system stops spacing debates by making every dimension and gap a multiple of 8px. It's used in design systems like Google's to create consistent layouts that render cleanly across devices. The biggest mistake is breaking the rule for "feel."
Figma Constraints: Building Responsive Layouts
Constraints are rules for how layers react when their frame is resized. Use them to build responsive designs, like pinning a logo to the top-left or stretching a background. The footgun: Constraints don't work on groups or inside Auto Layout frames.
Visual Balance: Arranging UI Elements for Stability
Think of visual balance like a seesaw for your UI. Elements have "visual weight" from their size and color, and a balanced design distributes this weight so the layout feels stable.
The Figma Interface: Your Digital Design Workshop
Figma's interface is a digital workshop: a central canvas for your work, a left sidebar for layers and assets, and a right sidebar for properties. It's the hub for UI/UX design, prototyping, and developer handoff.
Figma Vector Networks: Graphs, Not Just Chains
Vector networks are graphs, not just chains. Unlike traditional paths where a point connects only two lines, a vector network allows multiple lines to meet at a single vertex. This is Figma's engine for complex shapes.
Boolean Operations: Non-Destructive Shape Math
Boolean operations are non-destructive shape math, combining layers into complex forms while keeping the original pieces editable. Use them for icons and illustrations. The footgun: intersecting non-overlapping shapes makes them disappear until they touch.
Figma Prototypes: Build Interactive Flows, Not Just Screens
Figma prototypes turn static designs into interactive user journeys by connecting frames. Use them to test user flows, present to stakeholders, or get feedback before writing code. The footgun: a single top-level frame can only be one flow's starting point.
Figma's Smart Animate: Motion Without Keyframes
Figma's Smart Animate creates fluid animations by tweening layers between frames. It's perfect for prototypes with expanding cards, sliding toggles, or parallax effects.
Figma Instance Overrides: Local Changes, Global Components
Instance overrides let you customize a component copy without breaking its link to the main. Use them to change a button's text or swap an icon for a specific context. The footgun: Overrides are lost when swapping variants if layer names don't match.
Base Component Pattern: Your Design System's Template
Think of a base component as a master template for UI elements. Changes to the master instantly update every copy, ensuring consistency. Use it for repeated elements like buttons or icons that need slight variations.
Figma Prototype Flows: Isolate User Journeys
Prototype Flows are named entry points for testing distinct user journeys in one file. Instead of separate pages for 'Sign Up' and 'Checkout,' create a flow for each. This keeps complex designs organized.
Prototype Triggers: Defining How Users Interact
A prototype trigger is the 'if' in an 'if-then' UI interaction, defining the user input that causes a change. It's used in design tools to simulate app behavior, from clicks to drags.
Prototype Animations: Guiding Users Between States
Think of prototype animations as visual storytelling, showing the relationship between a user's action and the resulting UI state. Use them to show menus expanding or pages sliding in.
Design System Governance: Preventing UI Drift
Design system governance is the constitution for your UI, defining how components evolve, not just what they are. It prevents the slow drift where production code diverges from the Figma library as teams make local exceptions.
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