user interface - Progress Indicators: Their History and Usage -

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i undertaking research project progress indicators (i may expand more elements of gui) , looking gather material possible on them in terms of graphic design (not looking coding etc.) , appearance in history , use today.

i'm asking in finding examples of progress indicators in past, believe xerox parc first gui assuming first place progress indicator found in context. i'm after in locating written articles them. can think of relevant progress indicators in context, computers, video games, including usage today (i doing survey of current trends , developments of pis).

anything helpful, in advance!

isaac

good old robert bell wrote article on subject.

http://chrisharrison.net/projects/progressbars/progbarharrison.pdf

i heard somewhere software delays progress bar if user thinks software has installed or loaded quick there issue cannot find explains in further details.

something read

progress bars shouldn't based on time, should based on quantity of work. typically when marquee style of progress bar (where show animations, no actual progress), means quantity unknown. happens in lot of situations total number of steps processed unknown due data, or amount of time take calculate total number of items take long.

progress bars should different subject time estimates not same. have 100 things process, progress between 1 , 100. how long takes depends entirely upon processing. if i'm processing invoices say, how long takes depends lot on involved invoice (line items, calculations, other ups).

just because took 10 seconds process last 1 doesn't mean it's going take 10 seconds process next one. in order determine how time left, people take quantity left , multiply average time it's taken far. apply smoothing average (so doesn't jump around lot), other that, how else estimate time? if amount of time takes process items even, estimate accurate, if vastly different between items, estimate going jump on place , wildly inaccurate.

http://developers.slashdot.org/story/13/02/13/0026234/ask-slashdot-why-is-it-so-hard-to-make-an-accurate-progress-bar


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