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xtarget External Target (TBX)

The @xtarget attribute can be used to point to a location external to the current document.
OPTIONAL on elements: <tbx:entailedTerm>, <tbx:source>
Value Meaning Behavior
Text, numbers, or special characters A pointer (which may be a URL) to an external resource Can be used to make this element a live link to a related site
Restriction This is an optional attribute; there is no default.
REQUIRED on many elements; click for list and usage

<tbx:externalCrossReference>, <tbx:xGraphic>, <tbx:xMathML>, <tbx:xSource>

Value Meaning Behavior
Text, numbers, or special characters A pointer (which may be a URL) to an external resource Can be used to make this element a live link to a related site
Restriction This attribute is required; it must be provided if the element is used.
Tagged Sample

External link to US government document

<tbx:termEntry id="ISO10241-1.a210.14">
  <tbx:langSet xml:lang="en">
    <tbx:definition>any event or series of events that disrupt ecosystem, community, or population
      structure and alters the physical environment</tbx:definition>
    <tbx:source>U.S. ENVIRONMENTAL PROTECTION AGENCY. <italic>Terms of Environment: Glossary,
      Abbreviations and Acronyms</italic> online, viewed 2010-07-29].</tbx:source>
    <tbx:xSource xtarget="http://www.epa.gov/OCEPAterms/dterms.html">Available from:
      http://www.epa.gov/OCEPAterms/dterms.html.</tbx:xSource>
    <tbx:tig>
      <tbx:term id="a210.14-1">disturbance</tbx:term>
      <tbx:partOfSpeech value="noun"/>
      <tbx:pronunciation>/dıˈstɜ:bəns/</tbx:pronunciation>
    </tbx:tig>
  </tbx:langSet>
</tbx:termEntry>