Every action needs a perceivable response that says it was received and what it did.
Principle · Interaction
Tag
norman
Entries tagged norman, drawn from across the library. Tags cut through the section structure, which is where most of the useful connections are.
7 entries across 1 section
Type
Category
Level
7 entries
A capability that users cannot find does not exist, no matter how well it is built.
Principle · Interaction
An affordance is what an object makes possible. A signifier is the cue that tells you so.
Principle · Interaction
Controls should be arranged to match the thing they control, so the relationship needs no explanation.
Principle · Interaction
Restricting what is possible is the cheapest way to prevent an entire class of error.
Principle · Interaction
Two gaps break interfaces: not knowing how to do the thing, and not knowing whether it worked.
Principle · Interaction
Users act on their belief about how the system works, not on how it actually works.
Mental model · Understanding