UX Principles Overview Essential UX principles that every developer should know. Good UX isn't just design—it's built into code, architecture, and technical decisions. --- Nielsen's 10 Usability Heuristics 1. Visibility of System Status 2. Match Between System and Real World 3. User Control and Freedom 4. Consistency and Standards 5. Error Prevention --- Accessibility (WCAG) Semantic HTML ARIA Attributes Keyboard Navigation Color and Contrast --- Responsive Design Mobile-First Approach Touch Targets --- Performance as UX Perceived Performance Content Prioritization --- Forms UX Input Design F…