aa489c7eb8
Add detailed landing page development plan in docs/frontend_landing_plan.md: - Complete landing page structure (Hero, Problem/Solution, Features, Demo, CTA) - Design guidelines from downloaded skills (typography, color, motion, composition) - Security considerations (XSS prevention, input sanitization, CSP) - Performance targets (LCP <2.5s, bundle <150KB, Lighthouse >90) - Responsiveness and accessibility requirements (WCAG 2.1 AA) - Success KPIs and monitoring setup - 3-week development timeline with daily tasks - Definition of Done checklist Download 10+ frontend/UI/UX skills via universal-skills-manager: - frontend-ui-ux: UI/UX design without mockups - frontend-design-guidelines: Production-grade interface guidelines - frontend-developer: React best practices (40+ rules) - frontend-engineer: Next.js 14 App Router patterns - ui-ux-master: Comprehensive design systems and accessibility - ui-ux-systems-designer: Information architecture and interaction - ui-ux-design-user-experience: Platform-specific guidelines - Plus additional reference materials and validation scripts Configure universal-skills MCP with SkillsMP API key for curated skill access. Safety first: All skills validated before installation, no project code modified. Refs: Universal Skills Manager (github:jacob-bd/universal-skills-manager) Next: Begin Sprint 3 landing page development
60 lines
2.2 KiB
Markdown
60 lines
2.2 KiB
Markdown
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### Nielsen's 10 Usability Heuristics
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1. **Visibility of System Status**: Keep users informed with appropriate feedback
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2. **Match Between System and Real World**: Use familiar language and concepts
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3. **User Control and Freedom**: Provide undo, redo, and easy exits
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4. **Consistency and Standards**: Follow platform conventions
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5. **Error Prevention**: Design to prevent errors before they occur
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6. **Recognition Rather Than Recall**: Make options and actions visible
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7. **Flexibility and Efficiency of Use**: Accelerators for expert users
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8. **Aesthetic and Minimalist Design**: Remove irrelevant information
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9. **Help Users Recognize, Diagnose, and Recover from Errors**: Clear error messages
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10. **Help and Documentation**: Provide searchable, task-focused help
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### Cognitive Load
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**What Is It?**
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The mental effort required to use an interface. High cognitive load leads to user frustration and errors.
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**Reducing Cognitive Load:**
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- Chunk information into digestible pieces
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- Use progressive disclosure
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- Provide clear visual hierarchy
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- Minimize choices (paradox of choice)
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- Use familiar patterns and conventions
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- Reduce required memory with visual cues
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### Fitts's Law
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**What Is It?**
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The time to reach a target is proportional to distance and inversely proportional to target size.
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**UI Implications:**
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- Make important buttons large and easy to reach
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- Place frequently used actions in accessible areas
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- Increase touch targets for mobile (minimum 44x44px)
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- Use edge and corner positions for key actions (infinite depth)
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### Hick's Law
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**What Is It?**
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Decision time increases logarithmically with the number of choices.
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**UI Implications:**
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- Limit options to reduce decision time
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- Categorize and group related options
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- Use progressive disclosure for complex choices
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- Highlight recommended options
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### Gestalt Principles
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- **Proximity**: Elements close together are perceived as grouped
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- **Similarity**: Similar elements are perceived as related
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- **Closure**: Mind completes incomplete shapes
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- **Continuity**: Eyes follow continuous lines and patterns
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- **Figure-Ground**: Perception of foreground and background
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- **Common Fate**: Elements moving together are perceived as grouped
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