Master Every UX/UI Decision with science
Research-backed principles from leading institutions, organized into a systematic methodology for predictable design outcomes
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Immediate access
Evidence-Based Research
from Leading Organizations
Drawing from peer-reviewed studies, industry best practices, and validated research from Nielsen Norman Group, MIT, Google, and other leading institutions. Every principle is backed by academic citations and real-world validation — not testimonials or endorsements.
Join professionals using evidence-based design principles to elevate their practice
100+ Research-Backed UX/UI Principles
2,847 Academic Citations
Leading Institutions Research Sources
Whether You Design, Build, or Manage Interfaces
Systematic UX/UI principles transform daily challenges into confident decisions
For Designers
From Subjective to Scientific
The Challenge:
Design decisions become popularity contests. 'I don't like the blue' replaces user-centered rationale.
The Transformation:
I chose this blue for WCAG accessibility contrast. Button sizes follow Fitts' Law. Layout uses Progressive Disclosure to manage cognitive load.
For Product Managers
From Features to Outcomes
The Challenge:
Feature-packed updates that reduce engagement. Roadmaps based on requests, not user needs.
The Transformation:
This feature adds complexity without value. Let's use Progressive Disclosure and Loss Aversion principles.
For Developers
From Guesswork to Guidelines
The Challenge:
Users struggle with interfaces that look right but work wrong. Implementation without user psychology understanding.
The Transformation:
Does this follow cognitive load principles? Are ARIA patterns correct? Will this animation cause vestibular issues?
For Decision Makers
From Opinions to Evidence
The Challenge:
Interface decisions by committee and personal preference while users struggle.
The Transformation:
We're replacing opinions with cognitive psychology evidence. We need to design with human nature, not against it.
Part I - Foundations27 Principles
The CompleteUX/UI Framework
Six progressive categories that transform how you approach every interface decision
Part I - Foundations
27 Principles • 2 Chapters
Ready to Master the
Complete Methodology?
7 free principles give you an overview. 100+ principles provide systematic mastery for every interface challenge you'll encounter.
"When a stakeholder questions your interface choices, you need more than 'it feels right.' You need evidence."
Every principle in this library is backed by peer-reviewed research. Reference Miller's Law when limiting menu items, or cite Hick's Law when simplifying choice architecture.
Miller's Law
Hick's Law
Fitts's Law
"Good design is invisible. Users shouldn't have to think about how to use your interface— it should just work."
Apply Nielsen's heuristics to evaluate interface effectiveness. Use consistency principles to reduce learning curves and create intuitive navigation patterns.
Nielsen's Heuristics
Consistency
Error Prevention
"Accessibility isn't a feature—it's a fundamental requirement. Design for everyone."
WCAG guidelines ensure your interfaces work for all users. Proper contrast ratios, keyboard navigation, and screen reader support are non-negotiable standards.
WCAG 2.1
ARIA Labels
Color Contrast
"New platforms demand new principles. Stay ahead of the curve."
Voice UI requires conversation design patterns. AR/VR needs spatial UX considerations. AI interfaces demand transparency and user control principles.
Voice UI
AR/VR Design
AI Transparency
"When a stakeholder questions your interface choices, you need more than 'it feels right.' You need evidence."
Every principle in this library is backed by peer-reviewed research. Reference Miller's Law when limiting menu items, or cite Hick's Law when simplifying choice architecture.
Your $99 Investment Growsto $800+ in Professional Value
Early adopters lock in lifetime access to expanding professional methodology
Best Value
Complete Framework
$99One-Time Payment / Forever Access
What's Included:
- All 112+ research-backed principles (continuously growing)
- Systematic methodology with 2,800+ research citations
- Cross-reference navigation between related principles
- Monthly framework updates with new research
- Advanced search and filtering by role, complexity, and domain
- Early access to upcoming Figma library + AI assistant ($700+ value)
- Bonus: Early access to physical book + condensed e-book
Perfect for: Professionals serious about systematic UX mastery and evidence-based decision making
Individual Professional Tools
$8per tool / Lifetime Access
What's Included:
- Comprehensive implementation guides (15-20 pages per principle)
- Real-world application examples with case studies
- Specialized AI prompt collections for UX workflows
- Professional templates and checklists
- Early access to Figma component libraries (Q1 2026)
- Curated principle bundles with 60%+ savings
Perfect for: Targeted skill development and specific implementation needs
Unlike subscriptions that cost $100+/month indefinitely, your one-time $99 investment compounds in value as we add $800+ worth of professional tools - all included free.
Product Roadmap
What's Live — and What's Coming
Live
Live
Phase 1
Core Content + Free Access
Current Value: $99 gets you 100+ principles ($0.99 per principle)
Professional Impact: Achieve 67% faster stakeholder alignment
What's Included: A full methodology backed by 2,847 research citations
Q1 2026
Q1 2026
Phase 2
Figma Library + PDF Guides
Added Value: +$200+ worth of professional design tools (included free)
Professional Impact: Drag-and-drop systematic design workflow
What's Added: Complete component library with built-in UX principles
In Development
In Development
Phase 3
AI-Powered UX Assistant
Added Value: +$500+ worth of AI consultation (included free)
Professional Impact: Instant expert guidance for complex UX decisions
What's Added: Custom AI trained on complete framework methodology
Frequently Asked Questions
Everything you need to know about the UX/UI principles framework
Every principle is backed by academic research and real-world validation from industry leaders. We provide research citations, implementation examples, and role-specific guidance (Designer, Developer, Product Manager) — not just theory. Our systematic 6-part framework takes you from cognitive foundations to AI-integrated design.
UX/UI designers seeking evidence-based methodology, developers building user interfaces, product managers making design decisions, and anyone transitioning into UX/UI roles. Whether you're a beginner learning foundations or an expert exploring specialized domains, the progressive structure adapts to your level.
112 principles across 6 progressive learning parts: Foundations (cognitive psychology), Core Principles (design fundamentals), Design Systems (systematic usability), Interface Patterns (practical application), Specialized Domains (emerging technology), and Human-Centered Excellence (ethics and accessibility). Each principle includes research, examples, and implementation guidance.
6 complete principles (1 per part), framework overview, implementation examples from real interfaces, and community access. This gives you a comprehensive introduction to the methodology and systematic approach. Paid tiers unlock all 112 principles, AI assistant, and advanced features.
Absolutely. The evidence-based approach transforms design discussions from opinion to methodology. Many teams use the principles as a shared vocabulary for design critiques, onboarding new members, and aligning cross-functional collaboration. Contact us for team licensing options.
Professional tier members receive monthly content updates with new research, emerging patterns, and industry case studies. The core principles remain stable (grounded in cognitive science), while modern examples and specialized domains evolve with technology trends.
Ready to Transform Your UX Practice?
Start with 6 free principles (1 per part) - no signup required
Experience the systematic methodology immediately. Complete principles with research citations, implementation examples, and role-specific guidance.