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	<id>http://kb.perpendicularangel.com/index.php?action=history&amp;feed=atom&amp;title=Cognitive_Design_Principles</id>
	<title>Cognitive Design Principles - Revision history</title>
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	<updated>2026-04-29T13:43:32Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://kb.perpendicularangel.com/index.php?title=Cognitive_Design_Principles&amp;diff=2925&amp;oldid=prev</id>
		<title>Kirabug at 00:01, 8 January 2021</title>
		<link rel="alternate" type="text/html" href="http://kb.perpendicularangel.com/index.php?title=Cognitive_Design_Principles&amp;diff=2925&amp;oldid=prev"/>
		<updated>2021-01-08T00:01:14Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 17:01, 7 January 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l10&quot;&gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Provide multiple coding of data. The system should provide data in varying formats and/or levels of detail in order to promote cognitive flexibility and satisfy user preferences.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Provide multiple coding of data. The system should provide data in varying formats and/or levels of detail in order to promote cognitive flexibility and satisfy user preferences.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Practice judicious redundancy. Principle 10 was devised by the first two authors to resolve the possible conflict between Principles 6 and 8, that is, in or- der to be consistent, it is sometimes necessary to include more information than may be needed at a given time.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# Practice judicious redundancy. Principle 10 was devised by the first two authors to resolve the possible conflict between Principles 6 and 8, that is, in or- der to be consistent, it is sometimes necessary to include more information than may be needed at a given time.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Kirabug</name></author>
	</entry>
	<entry>
		<id>http://kb.perpendicularangel.com/index.php?title=Cognitive_Design_Principles&amp;diff=2924&amp;oldid=prev</id>
		<title>Kirabug: Created page with &quot;The following principles were written by Jill Gerhardt-Powals in [https://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=&amp;ved=2ahUKEwjShuP6-IruAhWluVkKHb1qC64QFjACegQIB...&quot;</title>
		<link rel="alternate" type="text/html" href="http://kb.perpendicularangel.com/index.php?title=Cognitive_Design_Principles&amp;diff=2924&amp;oldid=prev"/>
		<updated>2021-01-08T00:00:58Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;The following principles were written by Jill Gerhardt-Powals in [https://www.google.com/url?sa=t&amp;amp;rct=j&amp;amp;q=&amp;amp;esrc=s&amp;amp;source=web&amp;amp;cd=&amp;amp;ved=2ahUKEwjShuP6-IruAhWluVkKHb1qC64QFjACegQIB...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The following principles were written by Jill Gerhardt-Powals in [https://www.google.com/url?sa=t&amp;amp;rct=j&amp;amp;q=&amp;amp;esrc=s&amp;amp;source=web&amp;amp;cd=&amp;amp;ved=2ahUKEwjShuP6-IruAhWluVkKHb1qC64QFjACegQIBxAC&amp;amp;url=http%3A%2F%2Fwww.portaldeconhecimentos.org.br%2Findex.php%2Fpor%2Fcontent%2Fdownload%2F47250%2F608540%2Ffile%2FGerhardt-Powals1996.pdf&amp;amp;usg=AOvVaw2GI7eHg938jWF7362vNzDx Cognitive Engineering Principles for Enhancing Human-Computer Performance (PDF)]&lt;br /&gt;
# Automate unwanted workload. Eliminate mental calculations, estimations, comparisons, and any unnecessary thinking, to free cognitive resources for high-level tasks.&lt;br /&gt;
# Reduce uncertainty. Display data in a manner that is clear and obvious to reduce decision time and error.&lt;br /&gt;
# Fuse data. Bring together lower level data into a higher level summation to reduce cognitive load.&lt;br /&gt;
# Present new information with meaningful aids to interpretation. New information should be presented within familiar frame- works (e.g., schemas, metaphors, everyday terms) so that in- formation is easier to absorb.&lt;br /&gt;
# Use names that are conceptually related to function. Display names and labels should be context-dependent, which will improve recall and recognition.&lt;br /&gt;
# Group data in consistently, meaningful ways. Within a screen, data should be logically grouped; across screens, it should be consistently grouped. This will decrease information search time.&lt;br /&gt;
# Limit data driven tasks. Use color and graphics, for example, to reduce the time spent assimilating raw data.&lt;br /&gt;
# Include in the displays only that information needed by the operator at a given time. Exclude extraneous information that is not relevant to current tasks so that the user can focus attention on critical data.&lt;br /&gt;
# Provide multiple coding of data. The system should provide data in varying formats and/or levels of detail in order to promote cognitive flexibility and satisfy user preferences.&lt;br /&gt;
# Practice judicious redundancy. Principle 10 was devised by the first two authors to resolve the possible conflict between Principles 6 and 8, that is, in or- der to be consistent, it is sometimes necessary to include more information than may be needed at a given time.&lt;/div&gt;</summary>
		<author><name>Kirabug</name></author>
	</entry>
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