A consistent interface lets a person reuse what they have already learned. A familiar arrangement or label can make a new screen easier to understand without another explanation.
Match repeated appearance with repeated behavior. Two controls that look alike should not produce unexpectedly different kinds of action. At the same time, a new situation may need a distinction rather than a forced visual match.
Review a small collection of related screens and trace the same task across them. Keep patterns that reduce uncertainty, and question rules that hide meaningful differences. Consistency serves understanding when it preserves the right expectations.
- Match appearance with behavior.
- Preserve useful learned patterns.
- Make meaningful differences visible.
Imagine a practical setting.
Consider using the same saved-story control across cards and articles. A learned action can travel between layouts even when their presentation differs.
Before the next experiment.
An element needs a role in the whole experience. Spacing, emphasis, and feedback work best when they help someone make a particular decision.
Follow a related question
Choose a limit that makes beginning easier.
One constraint for a first draftTest a longer heading.
Space that adapts to the wordsKeep learning
Related background to continue exploring this subject.
W3C: accessibility, usability, and inclusion W3C: understanding accessibility criteria
