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It is much more important that a system actually spend the available resources in the best way possible. For instance, it makes sense to let the mouse driver run at a very high priority to provide fluid mouse interactions. For long-term operations, such as copying, downloading or transforming big
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A decent process management system, giving highest priority to operations that would otherwise interrupt the user's work flow, such as typing, onscreen buttons, or moving the mouse pointer. Usually there is enough "idle time" in between, for the other
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Proceedings: the first
International Conference on Industrial & Engineering Applications of Artifcial Intelligence & Expert Systems : IEA/AIE-88 at the University of Tennessee Space Institute (UTSI), Tullahoma, Tennessee, June 1-3,
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Long delays can be a major cause of user frustration, or can lead the user to believe the system is not functioning, or that a command or input gesture has been ignored. Responsiveness is therefore considered an essential
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Deliver intermediate results, before the operation is finished. For instance, a web page can already be operated before all images are loaded, which will take up the idle time which would otherwise be spent
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Let the user do something productive while the system is busy for instance, writing information in a form, reading a manual, etc. For instance, in a tabbed browser, the user can read one page while loading
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files the most important factor is to provide good user-feedback and not the performance of the operation since it can quite well run in the background, using only spare processor time.
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The frustration threshold can be quite different, depending on the situation and the fact that user interface depends on local or remote systems to show a visible response.
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Software which lacks a decent process management can have poor responsiveness even on a fast machine. On the other hand, even slow hardware can run responsive software.
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refers to the specific ability of a system or functional unit to complete assigned tasks within a given time. For example, it would refer to the ability of an
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Optimizing the process that delivers the output by eliminating wasteful, unproductive output from the algorithm or method by which the result is produced.
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can significantly reduce frustration. For short delays, an animated icon might be sufficient. Longer delays are better covered with a
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Although numerous other options may exist, the most frequently used and recommended answers to responsiveness issues are:
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that depends on a remote system for the response; this kind of delay usually does not interrupt user's flow of thoughts;
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This article is about responsiveness in human computer interaction. For responsiveness of a vehicle, see
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In the
Reactive principle, Responsiveness is one of the fundamental criteria along with
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Jonas Bonér; Dave Farley; Roland Kuhn; Martin
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between 0.1 seconds and 1.0 second a slight delay is perceived, which is
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as it usually interrupts the user's attention on task being performed.
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Acceptable
Response Times from the GNOME Human Interface Guidelines
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Excerpt from the book
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Chapter 9. Constructing A Responsive User
Interface. by David Sweet
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University of
Tennessee (System). Space Institute; SIGART. (1988).
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Using idle time to prepare for the operations a user might do next.
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system to understand and carry out its tasks in a timely fashion.
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Website
Visibility: The Theory and Practice of Improving Rankings
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requires a low latency/delay of the entire input-output-loop.
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between 1 second and 10 seconds, user's flow of thoughts is
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There are at least three user tolerance thresholds (i.e.):
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509:http://www.baychi.org/calendar/20031111/
409:. Taylor & Francis US. p. 180.
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