<sequence>

<sequence> indicates that the constructs referenced by its children form a sequence [22.5.1 Defining Content Models]
Module tagdocs — Documentation Elements
Attributes
preserveOrder⚓︎ if false, indicates that component elements of a sequence may occur in any order.
Status Optional
Datatype teidata.truthValue
Member of
model.contentPart
Contained by
tagdocs: alternate content sequence
May contain
tagdocs: alternate anyElement classRef dataRef elementRef empty macroRef sequence textNode
Example
<content>
 <sequence>
  <alternate>
   <elementRef key="name"/>
   <elementRef key="persName"/>
  </alternate>
  <elementRef key="placeName" minOccurs="0"
   maxOccurs="5"/>
 </sequence>
</content>

This example content model matches a sequence consisting of either a name or a persName followed by nothing, or by a sequence of up to five placeName elements.
Schematron

<sch:assert test="count(*)>1">The sequence element must have at least two child elements</sch:assert>
Content model 
<content>
 <classRef key="model.contentPart"
  maxOccurs="unbounded"/>
</content>
Schema Declaration 
<rng:element name="sequence">
 <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.global.source.attributes"/>
 <rng:ref name="att.repeatable.attributes"/>
 <rng:optional>
  <rng:attribute name="preserveOrder">
   <rng:ref name="teidata.truthValue"/>
  </rng:attribute>
 </rng:optional>
 <rng:oneOrMore>
  <rng:ref name="model.contentPart"/>
 </rng:oneOrMore>
</rng:element>
element sequence
{
   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.global.source.attributes,
   att.repeatable.attributes,
   attribute preserveOrder { teidata.truthValue }?,
   model.contentPart+
}