<altIdentifier>

<altIdentifier> (alternative identifier) 当該手書き資料を示す，代わりとなるIDまたは昔のIDを示す．例えば，昔の カタログ番号など． [10.4 The Manuscript Identifier]
モジュールmsdescription — Manuscript Description
属性att.global (@xml:id, @n, @xml:lang, @xml:base, @xml:space) (att.global.rendition (@rend, @style, @rendition)) (att.global.linking (@corresp, @synch, @sameAs, @copyOf, @next, @prev, @exclude, @select)) (att.global.analytic (@ana)) (att.global.facs (@facs)) (att.global.change (@change)) (att.global.responsibility (@cert, @resp)) att.typed (@type, @subtype)
上位
msdescription: msIdentifier msPart
下位
core: note
header: idno
msdescription: collection institution repository
namesdates: bloc country district geogName placeName region settlement
宣言

<rng:element name="altIdentifier">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.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:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.typed.attributes"/>
 <rng:group>
  <rng:ref name="model.placeNamePart_sequenceOptional"/>
  <rng:optional>
   <rng:ref name="institution"/>
  </rng:optional>
  <rng:optional>
   <rng:ref name="repository"/>
  </rng:optional>
  <rng:optional>
   <rng:ref name="collection"/>
  </rng:optional>
  <rng:ref name="idno"/>
  <rng:optional>
   <rng:ref name="note"/>
  </rng:optional>
 </rng:group>
</rng:element>
element altIdentifier
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.typed.attributes,
   (
      model.placeNamePart_sequenceOptional,
      institution?,
      repository?,
      collection?,
      idno,
      note?
   )
}
例
<altIdentifier>
 <settlement>San Marino</settlement>
 <repository>Huntington Library</repository>
 <idno>MS.El.26.C.9</idno>
</altIdentifier>
解説

識別番号が判る場合は，示す必要がある．判らない場合は，そのことを示 すべきである．