Good design isn’t just about aesthetics; it’s about predicting human behavior. Because the human brain is wired to seek patterns and minimize effort, users approach your interface with deep-seated psychological expectations.
The "Laws of UX" are a collection of best practices derived from psychology that help designers create intuitive, friction-free experiences. By understanding how people perceive, process, and react to digital stimuli, you can build interfaces that feel "natural" rather than manual.
In the following sections, we will break down the essential principles—from how we move our hands to how we store information—that define modern product design:
- Fitts’s Law: Optimizing movement and target acquisition.
- Hick’s Law: Reducing decision fatigue.
- Miller’s Law: Managing memory and cognitive load.
- Jakob’s Law: Leveraging familiarity and mental models.
- Gestalt Principles: Organizing visual relationships.
- Aesthetic-Usability Effect: Understanding the effect of Aesthetics on usability
- Doherty Threshold: Maintaining speed and responsiveness to sustain focus.
- Perceived Performance: Making interfaces feel faster through smart design cues.