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===Avoid when possible===
[[Image:Arret.jpg|thumb|Small signs make explicit the mappings from signal to roads.]]
Alternatives to modes such as the [[undo]] command and the [[Recycle bin (computing)|recycle bin]] are recommended when possible.<ref name="Implementation">{{cite web|url=http://quince.infragistics.com/Patterns/Modal%20Panel.aspx#Implementation|title=Modal Panel - Implementation|website=Infragistics.com]|url-status=dead|archive-url=https://web.archive.org/web/20130506101851/http://quince.infragistics.com/Patterns/Modal%20Panel.aspx#Implementation|archive-date=2013-05-06}}</ref> HCI researcher [[Donald Norman]] argues that the best way to avoid mode errors, in addition to clear indications of state, is helping the users to construct an accurate [[mental model]] of the system which will allow them to predict the mode accurately.<ref>{{cite journal|url=https://dl.acm.org/citation.cfm?id=358092|title=Design rules based on analyses of human error|year=1983|doi=10.1145/2163.358092|last1=Norman|first1=Donald A.|journal=Communications of the ACM|volume=26|issue=4|pages=254–258|s2cid=47103252|doi-access=free}}</ref>
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