13 original field notes
Find the principle behind the problem.
Search by a rule, an interface problem or the outcome you need. Each note turns theory into checks you can use in real product work.
Start from a problem
13 rules found
UX Laws · Foundation
Hick's Law
More competing choices generally increase decision effort.
Explore ruleUX Laws · Foundation
Fitts's Law
Targets are easier to acquire when they are larger and closer.
Explore ruleUX Laws · Foundation
Jakob's Law
People bring expectations learned from other products.
Explore ruleUX Laws · Foundation
Miller's Law
Working memory has limited capacity and benefits from structure.
Explore ruleUX Laws · Applied
Peak-End Rule
Memories of an experience are influenced by intense moments and its ending.
Explore ruleUsability · Foundation
Visibility of System Status
People need timely, understandable feedback about what is happening.
Explore ruleUsability · Foundation
User Control and Freedom
People need safe ways to change direction and recover from mistakes.
Explore ruleUsability · Foundation
Consistency and Standards
Similar things should look, sound and behave similarly.
Explore ruleUsability · Applied
Error Prevention
Prevent predictable mistakes before relying on error messages.
Explore ruleAccessibility · Foundation
Color Contrast
Text and essential graphics need enough contrast to remain perceivable.
Explore ruleAccessibility · Foundation
Keyboard Navigation
Interactive work should be completable without a pointing device.
Explore ruleAccessibility · Applied
Accessible Target Size
Interactive targets need sufficient size and spacing for reliable use.
Explore ruleUsability · Applied
Progressive Disclosure
Show the essentials first and reveal advanced detail when it becomes relevant.
Explore rule