universal-design-principles

Framework-agnostic design principles for visual perception and hierarchy: how the eye groups elements, where it lands first, and what makes a composition read as ordered. Covers Hierarchy, Proximity, Signal-to-Noise Ratio, Color, Alignment, Legibility, Readability, Gestalt Similarity, Closure, and Figure-Ground Relationship. Drawn from the perception-related entries of 'Universal Principles of Design' (Lidwell, Holden, Butler, 2003) and the broader Gestalt and visual-design research literature.

Framework-agnostic design principles for cognition, mental models, complexity reduction, and learnability. Covers Hick's Law, Wayfinding, Progressive Disclosure, 80/20 Rule, Chunking, Mental Model, Recognition Over Recall, Consistency, Mimicry, and Iconic Representation. Drawn from the cognition-related entries of 'Universal Principles of Design' (Lidwell, Holden, Butler, 2003) and the broader HCI literature (Norman, Miller, Nielsen, Krug).

Framework-agnostic design principles for interaction, affordance, feedback, errors, and user control. Covers Fitts's Law, Affordance, Forgiveness, Feedback Loop, Errors, Constraint, Mapping, Expectation Effect, and Control. Drawn from the interaction-related entries of 'Universal Principles of Design' (Lidwell, Holden, Butler, 2003) and the broader HCI literature (Fitts, Norman, Nielsen heuristics, Cooper).

Framework-agnostic design principles for aesthetics, perceived quality, brand personality, and emotional response. Covers Aesthetic-Usability Effect, Archetypes, Form Follows Function, Wabi-Sabi, Exposure Effect, and Immersion. Drawn from the aesthetic and emotion-related entries of 'Universal Principles of Design' (Lidwell, Holden, Butler, 2003) and the broader design and consumer-psychology literature.

Framework-agnostic design principles for design process, accessibility, iteration, and robustness against edge cases. Covers Accessibility, Iteration, Factor of Safety, Prototyping, Weakest Link, Scaling Fallacy, and Ockham's Razor. Drawn from the process-related entries of 'Universal Principles of Design' (Lidwell, Holden, Butler, 2003) and the broader engineering and inclusive-design literature (WCAG, Maeda, Cooper, Petroski).