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	<id>https://kb.phenomportal.com/index.php?action=history&amp;feed=atom&amp;title=UniqueIdentifier</id>
	<title>UniqueIdentifier - Revision history</title>
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	<updated>2026-04-27T22:11:58Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://kb.phenomportal.com/index.php?title=UniqueIdentifier&amp;diff=463&amp;oldid=prev</id>
		<title>Chris at 13:05, 12 August 2022</title>
		<link rel="alternate" type="text/html" href="https://kb.phenomportal.com/index.php?title=UniqueIdentifier&amp;diff=463&amp;oldid=prev"/>
		<updated>2022-08-12T13:05:20Z</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 09:05, 12 August 2022&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-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&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;{{Info|heading=This [[Observable]] has been renamed. | 1=The original definition of UniqueIdentifier in the [[Shared Data Model|SDM]] delegated the &amp;quot;uniqueness&amp;quot; of the identifier to the [[Logical Data Model]].  It was further discussed that any identifier may be &amp;quot;unique&amp;quot; within a given content (e.g., someone&amp;#039;s first name may be extremely common in one country but the same name will not be common in another).  As such, it was determined that any expectation of uniqueness should be relegated to the logical level.  The name of the [[observable]] was changes to reflect this change.}}&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;{{Info|heading=This [[Observable]] has been renamed. | 1=The original definition of UniqueIdentifier in the [[Shared Data Model|SDM]] delegated the &amp;quot;uniqueness&amp;quot; of the identifier to the [[Logical Data Model]].  It was further discussed that any identifier may be &amp;quot;unique&amp;quot; within a given content (e.g., someone&amp;#039;s first name may be extremely common in one country but the same name will not be common in another).  As such, it was determined that any expectation of uniqueness should be relegated to the logical level.  The name of the [[observable]] was changes to reflect this change.}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&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;br&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;br&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;Distinguishes an item from all other items.  NOTE: This will be renamed to [[Identifier]] in future editions.&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;Distinguishes an item from all other items.  NOTE: This will be renamed to [[Identifier]] in future editions.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Chris</name></author>
	</entry>
	<entry>
		<id>https://kb.phenomportal.com/index.php?title=UniqueIdentifier&amp;diff=462&amp;oldid=prev</id>
		<title>Chris: Created page with &quot;{{Info|heading=This Observable has been renamed. | 1=The original definition of UniqueIdentifier in the SDM delegated the &quot;uniqueness&quot; of the identifier to the Logical Data Model.  It was further discussed that any identifier may be &quot;unique&quot; within a given content (e.g., someone&#039;s first name may be extremely common in one country but the same name will not be common in another).  As such, it was determined that any expectation of uniqueness...&quot;</title>
		<link rel="alternate" type="text/html" href="https://kb.phenomportal.com/index.php?title=UniqueIdentifier&amp;diff=462&amp;oldid=prev"/>
		<updated>2022-08-12T13:05:13Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{Info|heading=This &lt;a href=&quot;/index.php?title=Observable&quot; title=&quot;Observable&quot;&gt;Observable&lt;/a&gt; has been renamed. | 1=The original definition of UniqueIdentifier in the &lt;a href=&quot;/index.php?title=Shared_Data_Model&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Shared Data Model (page does not exist)&quot;&gt;SDM&lt;/a&gt; delegated the &amp;quot;uniqueness&amp;quot; of the identifier to the &lt;a href=&quot;/index.php?title=Logical_Data_Model&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Logical Data Model (page does not exist)&quot;&gt;Logical Data Model&lt;/a&gt;.  It was further discussed that any identifier may be &amp;quot;unique&amp;quot; within a given content (e.g., someone&amp;#039;s first name may be extremely common in one country but the same name will not be common in another).  As such, it was determined that any expectation of uniqueness...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Info|heading=This [[Observable]] has been renamed. | 1=The original definition of UniqueIdentifier in the [[Shared Data Model|SDM]] delegated the &amp;quot;uniqueness&amp;quot; of the identifier to the [[Logical Data Model]].  It was further discussed that any identifier may be &amp;quot;unique&amp;quot; within a given content (e.g., someone&amp;#039;s first name may be extremely common in one country but the same name will not be common in another).  As such, it was determined that any expectation of uniqueness should be relegated to the logical level.  The name of the [[observable]] was changes to reflect this change.}}&lt;br /&gt;
&lt;br /&gt;
Distinguishes an item from all other items.  NOTE: This will be renamed to [[Identifier]] in future editions.&lt;/div&gt;</summary>
		<author><name>Chris</name></author>
	</entry>
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