<desc>

<desc> (description) contains a short description of the purpose, function, or use of its parent element, or when the parent is a documentation element, describes or defines the object being documented. [22.4.1. Description of Components]
Module core
Attributes
att.global
xml:id
n
xml:lang
att.global.rendition
style
rendition
att.global.linking
corresp
copyOf
next
prev
att.translatable
versionDate
type characterizes the element in some sense, using any convenient classification scheme or typology.
Derived from att.typed
Status Optional
Datatype teidata.enumerated
Suggested values include:
deprecationInfo
(deprecation information) This element describes why or how its parent element is being deprecated, typically including recommendations for alternate encoding.

<dataSpec module="tei" ident="teidata.point" validUntil="2050-02-25">
   
<desc type="deprecationInfo" versionDate="2018-09-14" xml:lang="en">Several standards bodies, including NIST in the USA,
        strongly recommend against ending the representation of a number
        with a decimal point. So instead of 
<q>3.</q> use either <q>3</q>
        or 
<q>3.0</q>.</desc>
   
<!-- ... -->
</dataSpec>
Member of
Contained by
May contain
Note
When used in a specification element such as elementSpec, TEI convention requires that this be expressed as a finite clause, begining with an active verb.
Examples Example of a desc element inside a documentation element.

<dataSpec module="tei" ident="teidata.point">
   
<desc versionDate="2010-10-17" xml:lang="en">defines the data type used to express a point in cartesian space.</desc>
   
<content>
      
<dataRef name="token" restriction="(-?[0-9]+(\.[0-9]+)?,-?[0-9]+(\.[0-9]+)?)"/>
   
</content>
   
<!-- ... -->
</dataSpec>
Example of a desc element in a non-documentation element.

<place xml:id="KERG2">
   
<placeName>Kerguelen Islands</placeName>
   
<!-- ... -->
   
<terrain>
      
<desc>antarctic tundra</desc>
   
</terrain>
   
<!-- ... -->
</place>
Schematron
A desc with a type of deprecationInfo should only occur when its parent element is being deprecated. Furthermore, it should always occur in an element that is being deprecated when desc is a valid child of that element.

<sch:rule context="tei:desc[ @type eq 'deprecationInfo']">
   
<sch:assert test="../@validUntil">Information about a deprecation should only be present in a specification element that is being deprecated: that is, only an element that has a @validUntil attribute should have a child <desc type="deprecationInfo">.</sch:assert>
</sch:rule>
Source Github

<elementSpec module="core" ident="desc">
   
<gloss>description</gloss>
   
<desc>contains a short description of the purpose, function, or
use of its parent element,
or when the parent is a documentation element, describes or defines the object being documented. 

  
</desc>
   
<classes>
      
<memberOf key="att.global"/>
      
<memberOf key="model.descLike"/>
      
<memberOf key="att.translatable"/>
      
<memberOf key="att.typed"/>
      
<memberOf key="model.labelLike"/>
   
</classes>
   
<content>
      
<macroRef key="macro.limitedContent"/>
   
</content>
   
<attList>
      
<attDef ident="type" mode="change">
         
<valList type="semi" mode="add">
            
<valItem ident="deprecationInfo">
               
<gloss>deprecation
      information
</gloss>
               
<desc>This element
      describes why or how its parent element is being deprecated,
      typically including recommendations for alternate
      encoding.
</desc>
            
</valItem>
         
</valList>
      
</attDef>
   
</attList>
</elementSpec>