<app>

<app> (apparatus entry) contains one entry in a critical apparatus, with an optional lemma and at least one reading. [12.1.1 The Apparatus Entry]
Modultextcrit — 12 Critical Apparatus
Attributeatt.global (@xml:id, @n, @xml:lang, @rend, @rendition, @xml:base, @xml:space) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change))
typeclassifies the variation contained in this element according to some convenient typology.
Zustand Optional
Datentyp 

<rng:ref name="data.enumerated"/>
data.enumerated
Werte Any convenient descriptive word or phrase, describing the extent of the variation (e.g. word, phrase, punctuation, etc.) its text-critical significance (e.g. significant, accidental, unclear), or the nature of the variation or the principles required to understand it (e.g. lectio difficilior, usus auctoris, etc.)
fromidentifies the beginning of the lemma in the base text, if necessary.
Zustand Optional
Datentyp 

<rng:ref name="data.pointer"/>
data.pointer
Werte any valid identifier
toidentifies the endpoint of the lemma in the base text, if necessary.
Zustand Optional
Datentyp 

<rng:ref name="data.pointer"/>
data.pointer
Werte any valid identifier
loc (location) indicates the location of the variation, when the location-referenced method of apparatus markup is used.
Zustand Optional
Datentyp 1–∞ Vorkommen von 

<rng:ref name="data.word"/>
data.word
Durch Leerzeichen getrennt
Werte A string containing a canonical reference for the passage to which the variation applies.
Verwendet von
model.pPart.transcriptional
Enthalten in
analysis: cl pc phr s w
core: abbr add addrLine author bibl biblScope corr date del distinct editor email emph expan foreign gloss head headItem headLabel hi item l label measure mentioned name note num orig p pubPlace publisher q quote ref reg rs said sic soCalled speaker stage street term textLang time title unclear
dictionaries: case colloc def dictScrap entryFree etym form gen gram gramGrp hyph iType lang lbl mood number orth per pos pron re sense stress subc syll tns usg xr
drama: actor camera caption castItem role roleDesc sound tech view
figures: cell
header: change distributor edition extent geoDecl handNote licence scriptNote typeNote
linking: ab seg
msdescription: accMat acquisition additions catchwords collation colophon condition custEvent decoNote explicit filiation finalRubric foliation heraldry incipit layout material musicNotation objectType origDate origPlace origin provenance rubric secFol signatures source stamp summary support surrogates watermark
namesdates: addName affiliation birth bloc country death district education faith floruit forename genName geogName nameLink nationality occupation orgName persName placeName region residence roleName settlement sex socecStatus surname
spoken: u writing
textcrit: lem rdg wit witDetail
textstructure: byline closer dateline docAuthor docDate docEdition docImprint imprimatur opener salute signed titlePart trailer
transcr: am damage fw line metamark mod restore retrace supplied surplus zone
verse: rhyme
Kann enthalten
analysis: interp interpGrp span spanGrp
certainty: certainty precision respons
core: cb gap gb index lb milestone note pb
figures: figure notatedMusic
iso-fs: fLib fs fvLib
linking: alt altGrp anchor join joinGrp link linkGrp timeline
spoken: incident kinesic pause shift vocal writing
textcrit: lem rdg rdgGrp wit witDetail
transcr: addSpan damageSpan delSpan fw listTranspose metamark space substJoin
Deklaration

<rng:element name="app">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:optional>
  <rng:attribute name="type">
   <rng:ref name="data.enumerated"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="from">
   <rng:ref name="data.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="to">
   <rng:ref name="data.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="loc">
   <rng:list>
    <rng:ref name="data.word"/>
    <rng:zeroOrMore>
     <rng:ref name="data.word"/>
    </rng:zeroOrMore>
   </rng:list>
  </rng:attribute>
 </rng:optional>
 <rng:group>
  <rng:zeroOrMore>
   <rng:ref name="model.global"/>
  </rng:zeroOrMore>
  <rng:optional>
   <rng:ref name="lem"/>
   <rng:zeroOrMore>
    <rng:ref name="model.global"/>
   </rng:zeroOrMore>
   <rng:optional>
    <rng:ref name="wit"/>
    <rng:zeroOrMore>
     <rng:ref name="model.global"/>
    </rng:zeroOrMore>
   </rng:optional>
  </rng:optional>
  <rng:zeroOrMore>
   <rng:choice>
    <rng:group>
     <rng:ref name="model.rdgLike"/>
     <rng:zeroOrMore>
      <rng:ref name="model.global"/>
     </rng:zeroOrMore>
     <rng:optional>
      <rng:ref name="wit"/>
      <rng:zeroOrMore>
       <rng:ref name="model.global"/>
      </rng:zeroOrMore>
     </rng:optional>
    </rng:group>
    <rng:group>
     <rng:ref name="rdgGrp"/>
     <rng:zeroOrMore>
      <rng:ref name="model.global"/>
     </rng:zeroOrMore>
     <rng:optional>
      <rng:ref name="wit"/>
      <rng:zeroOrMore>
       <rng:ref name="model.global"/>
      </rng:zeroOrMore>
     </rng:optional>
    </rng:group>
   </rng:choice>
  </rng:zeroOrMore>
 </rng:group>
</rng:element>
element app
{
   att.global.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   attribute type { data.enumerated }?,
   attribute from { data.pointer }?,
   attribute to { data.pointer }?,
   attribute loc { list { data.word, data.word* } }?,
   (
      model.global*,
      ( lem, model.global*, ( wit, model.global* )? )?,
      (
         ( model.rdgLike, model.global*, ( wit, model.global* )? )
       | ( rdgGrp, model.global*, ( wit, model.global* )? )
      )*
   )
}
Schematron

<sch:assert
 test="count( descendant::tei:lem[ generate-id( current() ) = generate-id( ancestor::tei:app[1] ) ]) < 2">Only one <lem> element may appear within a single
apparatus entry, whether it appears outside a <rdgGrp>
element or within it.</sch:assert>
Schematron

<sch:assert
 test="count(descendant::tei:rdg[generate-id(current() ) = generate-id(ancestor::tei:app[1])]) > 0">An <app>
must contain at least one <rdg> element.</sch:assert>
Beispiel
<app>
 <lem wit="#El #Hg">Experience</lem>
 <rdg wit="#La" type="substantive">Experiment</rdg>
 <rdg wit="#Ra2" type="substantive">Eryment</rdg>
</app>
Beispiel
<app type="substantive">
 <rdgGrp type="subvariants">
  <lem wit="#El #Hg">Experience</lem>
  <rdg wit="#Ha4">Experiens</rdg>
 </rdgGrp>
 <rdgGrp type="subvariants">
  <lem wit="#Cp #Ld1">Experiment</lem>
  <rdg wit="#La">Ex<g ref="#per"/>iment</rdg>
 </rdgGrp>
 <rdgGrp type="subvariants">
  <lem>Eriment<wit>[unattested]</wit>
  </lem>
  <rdg wit="#Ra2">Eryment</rdg>
 </rdgGrp>
</app>