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Universal Data Element Framework
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<p>The Universal Data Element Framework (UDEF) was a <a href="/facts/Controlled_vocabulary/JcYKWx3H">controlled vocabulary</a> developed by <a href="/facts/The_Open_Group/uRoDdEae">The Open Group</a>. It provided a framework for categorizing, naming, and indexing data. It assigned to every item of data a structured alphanumeric tag plus a controlled vocabulary name that describes the meaning of the data. This allowed relating data elements to similar elements defined by other organizations. </p><p>UDEF defined a <a href="/facts/Dewey_Decimal_Classification/BsT2QEP2">Dewey-decimal</a> like code for each concept. For example, an "employee number" is often used in <a href="/facts/Human_resource_management/G2u0Setl">human resource management</a>. It has a UDEF tag a.5_12.35.8 and a controlled vocabulary description "Employee.PERSON_Employer.Assigned.IDENTIFIER". </p><p>UDEF has been superseded by the Open Data Element Framework (ODEF). </p>