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πŸ’‘ Why do we need guidelines?

  • 🧭 Easier Navigation – Users can quickly find what they need without confusion.
  • πŸ‘€ Instant Recognition – A consistent design helps users immediately recognize they are on an AET platform.
  • ⚑️ Improved Efficiency – Familiar layouts and interactions reduce cognitive load, making tasks faster and more intuitive.
  • πŸ†— Professional & Trustworthy – A polished, cohesive UI reinforces credibility and trust in our applications.
  • πŸ“± Seamless Multi-App Experience – Users moving between AET apps experience a unified interface, reducing friction.

By following these guidelines, we create a seamless and enjoyable experience for all users. πŸš€

⚠️

These guidelines introduce the core principles of good user interface (UI) and user experience (UX) design for web applications. They are meant as mandatory reading for all project members designing or implementing user-facing features.

🎯 Core Principles​

1. Simplicity​

  • Focus on clarity and purpose β€” every element must justify its existence.
  • Avoid clutter, technical jargon, and redundant actions.

πŸ“– References:

2. Consistency​

πŸ“– References:

3. Feedback​

  • Every user action should produce visible system feedback (loading, confirmation, error).
  • Use progress indicators and clear status messages.

4. Accessibility​

  • Ensure usability for people with disabilities (contrast, keyboard navigation, ARIA labels).
  • For more details refer to the accessibility guidelines.

5. Learnability & Affordance​

  • Users should immediately understand how to use an interface.
  • Make clickable elements look clickable.

πŸ“ Layout & Interaction Basics​

AspectGood PracticeExample
NavigationKeep menus short and visible; highlight current location
FormsGroup related inputs, show inline validation, avoid long formsBaymard Institute: Form Design Best Practices
ButtonsUse consistent styles for primary/secondary actionsButton guidelines
Error HandlingExplain what went wrong and how to fix itUX Design.cc: Error Message Design
Responsive DesignTest across devices and screen sizesGoogle: Responsive Design Basics
  1. Practical UI Preview
  2. Branded Interactions
  3. Apple Human Interface Guidelines
  4. Practical UI Full Book (Paywall)