universal data element framework

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      The Universal Data Element Framework (UDEF) was a controlled vocabulary developed by The Open Group. 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.
      UDEF defined a Dewey-decimal like code for each concept. For example, an "employee number" is often used in human resource management. It has a UDEF tag a.5_12.35.8 and a controlled vocabulary description "Employee.PERSON_Employer.Assigned.IDENTIFIER".
      UDEF has been superseded by the Open Data Element Framework (ODEF).


      Examples


      In an application used by a hospital, the last name and first name of several people could include the following example concepts:

      Patient Person Family Name – find the word “Patient” under the UDEF object “Person” and find the word “Family” under the UDEF property “Name”
      Patient Person Given Name – find the word “Patient” under the UDEF object “Person” and find the word “Given” under the UDEF property “Name”
      Doctor Person Family Name – find the word “Doctor” under the UDEF object “Person” and find the word “Family” under the UDEF property “Name”
      Doctor Person Given Name – find the word “Doctor” under the UDEF object “Person” and find the word “Given” under the UDEF property “Name”
      For the examples above, the following UDEF IDs are available:

      “Patient Person Family Name” the UDEF ID is “au.5_11.10”
      “Patient Person Given Name” the UDEF ID is “au.5_12.10”
      “Doctor Person Family Name” the UDEF ID is “aq.5_11.10”
      “Doctor Person Given Name” the UDEF ID is “aq.5_12.10”


      See also


      Data integration
      ISO/IEC 11179
      National Information Exchange Model
      Metadata
      Semantic web
      Data element
      Representation term
      Controlled vocabulary


      References




      External links


      UDEF Project of The Open Group
      UDEF Frequently Asked Questions
      O-DEF™, the Open Data Element Framework, Version 2.0
      O-DEF™, the Open Data Element Framework, Version 3.0

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