Manual override: Difference between revisions

Revision as of 13:58, 19 March 2013

Revision as of 12:43, 28 November 2015

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A '''manual override''' or '''manual analog override''' is a mechanism wherein control is taken from an [[automated system]] and given to the user. For example, a manual override in [[photography]] refers to the ability for the human photographer to turn off the automatic [[aperture]] sizing, [[automatic focus]]ing, or any other automated system on the camera.<ref>[http://www.ambitions4.com/Glossary-Pub-View-Topic-Details.asp?GlossaryID=339&strChar=M Manual override], Ambitions Photography Academy.</ref>

Some manual overrides can be used to veto an automated system's judgment when the system is in error. An example of this is a [[Printer (computing)|printer's]] ink level detection: in one case, a researcher found that when he overrode the system, up to 38% more pages could be printed at good quality by the printer than the automated system would have allowed.<ref name=BBC> [http://news.bbc.co.uk/2/hi/technology/3035500.stm 'Raw deal' on printer ink], ''[[BBC]]'', 3 July 2003 </ref>