Perceived performance, in
computer engineering, refers to how quickly a software feature appears to perform its task. The concept applies mainly to user acceptanceaspects.
The amount of time an application takes to start up, or a file to download, is not changed by showing a startup screen (see
Splash screen) or a file progress dialog box. However, it satisfies some human needs: it "appears" faster to the user as well as providing a visual cue to let them know the system is handling their request.
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