Below roughly 400 milliseconds of system response, people stop waiting on the machine and productivity rises sharply.
LAW·006Law · Performance
Tag7 entries across 3 sections
loading
Entries tagged loading, drawn from across the library. Tags cut through the section structure, which is where most of the useful connections are.
Type
Category
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7 entries
The interface should always tell the user what is going on, through timely and appropriate feedback.
HEUR·001Heuristic · Nielsen heuristics
What to show while waiting, chosen by how long the wait is and whether its length is known.
PAT·011Pattern · Content states
Grey placeholders in the shape of the content that is coming, which reads as progress rather than as waiting.
PAT·012Pattern · Content states
Communicating how far through something the user is, which requires honesty about what you can measure.
CMP·026Component · Feedback
Say what is happening, how long it will take if you know, and whether it is safe to leave.
WRT·011UX writing · UX writing
Speed is a usability property, and the metrics that matter are the ones measured on real devices.
FND·054UI foundation · Performance