🎯 UEO Orbit

🎯 UX

📊 Testing

🧠 Cognitive

♿ Accessibility

🎯 Usability Engineering

User Experience • Usability Testing • Interaction Design • Accessibility • Human Factors • UX Research

Master the art of creating intuitive, efficient, and satisfying user experiences — from usability testing and user research to interaction design, accessibility, and cognitive psychology in design.

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Usability Engineering Concepts & Techniques

Usability Basics

Effectiveness, efficiency, satisfaction, learnability.

UX Basics

User experience, design thinking, empathy.

Nielsen's Heuristics

10 usability heuristics, evaluation.

Shneiderman's Principles

8 golden rules of interface design.

Gestalt Principles

Proximity, similarity, closure, continuity.

Usability Testing

Moderated, unmoderated, remote, lab.

A/B Testing

Experimentation, statistical significance.

Guerilla Testing

Quick feedback, informal testing.

Remote Usability Testing

Tools, asynchronous, cross-platform.

Eye Tracking

Fixations, saccades, heatmaps.

User Research

Interviews, surveys, observation.

Personas

User profiles, scenarios, empathy maps.

User Journey Mapping

Touchpoints, pain points, opportunities.

Contextual Inquiry

Field studies, observation, interpretation.

Interaction Design

Affordances, signifiers, feedback, constraints.

UI Patterns

Navigation, forms, lists, modals.

Microinteractions

Triggers, rules, feedback, loops.

Web Accessibility

WCAG, ARIA, screen readers.

Inclusive Design

Universal design, diverse users.

Accessibility Testing

Automated, manual, assistive tech.

Cognitive Accessibility

Dyslexia, ADHD, memory, focus.

Cognitive Psychology

Perception, memory, attention, reasoning.

Cognitive Load

Intrinsic, extraneous, germane load.

HCI Theory

Activity theory, distributed cognition.

Prototyping

Paper, low-fi, high-fi, interactive.

Wireframing & Mockups

Layout, flows, interaction.

Heuristic Evaluation

Expert review, severity ratings.

Cognitive Walkthrough

Task-based, learnability.

UX Metrics

Task completion, time, error rate, SUS.

UX Analytics

Heatmaps, session recordings, funnels.

Information Architecture

Structure, navigation, labeling, search.

Card Sorting

Open, closed, hybrid, analysis.

Tree Testing

Navigation evaluation, findability.

UX Strategy

Business goals, user needs, KPIs.

Service Design

Blueprints, touchpoints, ecosystems.

Mobile UX

Touch targets, gestures, responsive.

Voice UX

VUI, conversational design, intent.

UX Tools

Figma, Sketch, Adobe XD, InVision.

UX Research Tools

UsabilityHub, Maze, UserTesting.

Ethics in UX

Dark patterns, privacy, responsible design.

Persuasive Design

Behavior change, nudges, motivation.

🎯 Usability Engineering Mastery Roadmap

🔰 Foundation

Basics, UX principles, user research intro

📶 Core

Heuristics, testing, accessibility, prototyping

🔥 Deep Dive

Eye tracking, advanced testing, analytics, IA

🏆 Frontier

Persuasive design, service design, ethics

🎯 Design, Test, Improve — Master Usability Engineering

From user research to accessibility, create products that people love to use.

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