<change>

Individual change within the revision description.
Module
MEI.header
Attributes
analog, class, copyof, corresp, enddate, follows, isodate, label, n, next, notafter, notbefore, precedes, prev, resp, sameas, startdate, synch, type, xml:base, xml:id
analog(optional)Contains a reference to a field or element in another descriptive encoding system to which this MEI element is comparable. Value is plain text.
class(optional)Contains one or more URIs which denote classification terms that apply to the entity bearing this attribute. One or more values from data.URI, separated by spaces.
copyof(optional)Points to an element of which the current element is a copy. Value conforms to data.URI.
corresp(optional)Used to point to other elements that correspond to this one in a generic fashion. One or more values from data.URI, separated by spaces.
enddate(optional)Contains the end point of a date range in standard ISO form. Value conforms to data.ISODATE.
follows(optional)points to one or more events in a user-defined collection that are known to be predecessors of the current element. One or more values from data.URI, separated by spaces.
isodate(optional)Provides the value of a textual date in standard ISO form. Value conforms to data.ISODATE.
label(optional)Captures text to be used to generate a label for the element to which it's attached, a "tool tip" or prefatory text, for example. Should not be used to record document content. Value is plain text.
n(optional)Provides a number-like designation that indicates an element's position in a sequence of similar elements. May not contain space characters. Value conforms to data.WORD.
next(optional)Used to point to the next event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
notafter(optional)Contains an upper boundary for an uncertain date in standard ISO form. Value conforms to data.ISODATE.
notbefore(optional)Contains a lower boundary, in standard ISO form, for an uncertain date. Value conforms to data.ISODATE.
precedes(optional)Points to one or more events in a user-defined collection that are known to be successors of the current element. One or more values from data.URI, separated by spaces.
prev(optional)Points to the previous event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
resp(optional)Indicates the agent(s) responsible for some aspect of the text's transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header. One or more values from data.URI, separated by spaces.
sameas(optional)Points to an element that is the same as the current element but is not a literal copy of the current element. One or more values from data.URI, separated by spaces.
startdate(optional)Contains the starting point of a date range in standard ISO form. Value conforms to data.ISODATE.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
type(optional)Designation which characterizes the element in some sense, using any convenient classification scheme or typology that employs single-token labels. One or more values of datatype NMTOKEN, separated by spaces.
xml:base(optional)Provides a base URI reference with which applications can resolve relative URI references into absolute URI references. Value conforms to data.URI.
xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it and other resources. Each id attribute within a document must have a unique value. Value is a valid xml:id.
(MEI.shared) Attributes common to many elements.
(MEI.shared) Attributes that form the basis of the att.common class.
xml:base(optional)Provides a base URI reference with which applications can resolve relative URI references into absolute URI references. Value conforms to data.URI.
(MEI.shared) Attributes that uniquely identify an element.
xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it and other resources. Each id attribute within a document must have a unique value. Value is a valid xml:id.
(MEI.shared)
label(optional)Captures text to be used to generate a label for the element to which it's attached, a "tool tip" or prefatory text, for example. Should not be used to record document content. Value is plain text.
(MEI.shared) Attributes that specify element-to-element relationships.
copyof(optional)Points to an element of which the current element is a copy. Value conforms to data.URI.
corresp(optional)Used to point to other elements that correspond to this one in a generic fashion. One or more values from data.URI, separated by spaces.
follows(optional)points to one or more events in a user-defined collection that are known to be predecessors of the current element. One or more values from data.URI, separated by spaces.
next(optional)Used to point to the next event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
precedes(optional)Points to one or more events in a user-defined collection that are known to be successors of the current element. One or more values from data.URI, separated by spaces.
prev(optional)Points to the previous event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
sameas(optional)Points to an element that is the same as the current element but is not a literal copy of the current element. One or more values from data.URI, separated by spaces.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
(MEI.shared) Attributes used to supply a number-like designation for an element.
n(optional)Provides a number-like designation that indicates an element's position in a sequence of similar elements. May not contain space characters. Value conforms to data.WORD.
(MEI.shared) Attributes capturing information regarding responsibility for some aspect of the text's creation, transcription, editing, or encoding.
resp(optional)Indicates the agent(s) responsible for some aspect of the text's transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header. One or more values from data.URI, separated by spaces.
(MEI.shared) Attributes which can be used to classify features.
type(optional)Designation which characterizes the element in some sense, using any convenient classification scheme or typology that employs single-token labels. One or more values of datatype NMTOKEN, separated by spaces.
(MEI.shared) Attributes which can be used to classify features.
class(optional)Contains one or more URIs which denote classification terms that apply to the entity bearing this attribute. One or more values from data.URI, separated by spaces.
(MEI.shared) Bibliographic attributes.
analog(optional)Contains a reference to a field or element in another descriptive encoding system to which this MEI element is comparable. Value is plain text.
(MEI.shared) Attributes common to dates.
enddate(optional)Contains the end point of a date range in standard ISO form. Value conforms to data.ISODATE.
isodate(optional)Provides the value of a textual date in standard ISO form. Value conforms to data.ISODATE.
notafter(optional)Contains an upper boundary for an uncertain date in standard ISO form. Value conforms to data.ISODATE.
notbefore(optional)Contains a lower boundary, in standard ISO form, for an uncertain date. Value conforms to data.ISODATE.
startdate(optional)Contains the starting point of a date range in standard ISO form. Value conforms to data.ISODATE.
Component declarations that are shared between two or more modules.
analog(optional)Contains a reference to a field or element in another descriptive encoding system to which this MEI element is comparable. Value is plain text.
class(optional)Contains one or more URIs which denote classification terms that apply to the entity bearing this attribute. One or more values from data.URI, separated by spaces.
copyof(optional)Points to an element of which the current element is a copy. Value conforms to data.URI.
corresp(optional)Used to point to other elements that correspond to this one in a generic fashion. One or more values from data.URI, separated by spaces.
enddate(optional)Contains the end point of a date range in standard ISO form. Value conforms to data.ISODATE.
follows(optional)points to one or more events in a user-defined collection that are known to be predecessors of the current element. One or more values from data.URI, separated by spaces.
isodate(optional)Provides the value of a textual date in standard ISO form. Value conforms to data.ISODATE.
label(optional)Captures text to be used to generate a label for the element to which it's attached, a "tool tip" or prefatory text, for example. Should not be used to record document content. Value is plain text.
n(optional)Provides a number-like designation that indicates an element's position in a sequence of similar elements. May not contain space characters. Value conforms to data.WORD.
next(optional)Used to point to the next event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
notafter(optional)Contains an upper boundary for an uncertain date in standard ISO form. Value conforms to data.ISODATE.
notbefore(optional)Contains a lower boundary, in standard ISO form, for an uncertain date. Value conforms to data.ISODATE.
precedes(optional)Points to one or more events in a user-defined collection that are known to be successors of the current element. One or more values from data.URI, separated by spaces.
prev(optional)Points to the previous event(s) in a user-defined collection. One or more values from data.URI, separated by spaces.
resp(optional)Indicates the agent(s) responsible for some aspect of the text's transcription, editing, or encoding. Its value must point to one or more identifiers declared in the document header. One or more values from data.URI, separated by spaces.
sameas(optional)Points to an element that is the same as the current element but is not a literal copy of the current element. One or more values from data.URI, separated by spaces.
startdate(optional)Contains the starting point of a date range in standard ISO form. Value conforms to data.ISODATE.
synch(optional)Points to elements that are synchronous with the current element. One or more values from data.URI, separated by spaces.
type(optional)Designation which characterizes the element in some sense, using any convenient classification scheme or typology that employs single-token labels. One or more values of datatype NMTOKEN, separated by spaces.
xml:base(optional)Provides a base URI reference with which applications can resolve relative URI references into absolute URI references. Value conforms to data.URI.
xml:id(optional)Regularizes the naming of an element and thus facilitates building links between it and other resources. Each id attribute within a document must have a unique value. Value is a valid xml:id.
Member of
(change isn't member of any model class)
Contained by
revisionDescIndividual change within the revision description.
Metadata header component declarations.
revisionDesc(revision description) – Container for information about alterations that have been made to an MEI file.
May Contain
changeDescIndividual change within the revision description.
respStmtIndividual change within the revision description.
(MEI.shared) Groups elements containing date expressions.
dateGroups elements containing date expressions.
Metadata header component declarations.
changeDesc(change description) – Description of a revision of the MEI file.
Component declarations that are shared between two or more modules.
dateA string identifying a point in time or the time period between two such points.
respStmt(responsibility statement) – Transcription of text that names one or more individuals, groups, or in rare cases, mechanical processes, responsible for creation, realization, production, funding, or distribution of the intellectual or artistic content.
Remarks

Additions, deletions, and significant recoding should be noted, but not correction of minor typographical errors. It is recommended that revisions should be entered in reverse chronological order, with the most recent change first. The resp attribute contains a pointer to an element containing info about the person/entity responsible for change. The edition element can be used to designate an MEI encoding that has been so substantively changed that it constitutes a new version that supersedes earlier versions.This element is modelled on an element in the Encoded Archival Description (EAD) standard.

Constraints
The date of the change must be recorded in an isodate attribute or date element.
It is recommended that the agent responsible for the change be recorded in a resp attribute or in a name, corpName, or persName element in the respStmt element.
<sch:rule context="mei:change">
<sch:assert test="@isodate or mei:date">The date of the change must be recorded in an isodate attribute or date element.</sch:assert>
<sch:assert test="@resp or mei:respStmt[mei:name or mei:corpName or mei:persName]" role="warning">It is recommended that the agent responsible for the change be recorded in a resp attribute or in a name, corpName, or persName element in the respStmt element.</sch:assert>
</sch:rule>
Declaration
<elementSpec ident="change" module="MEI.header">
<desc>Individual change within the revision description.</desc>
<classes>
<memberOf key="att.common"/>
<memberOf key="att.bibl"/>
<memberOf key="att.datable"/>
</classes>
<content>
<rng:optional>
<rng:ref name="respStmt" />
</rng:optional>
<rng:ref name="changeDesc" />
<rng:optional>
<rng:ref name="model.dateLike" />
</rng:optional>
</content>
<constraintSpec ident="check_change" scheme="isoschematron">
<constraint>
<sch:rule context="mei:change">
<sch:assert test="@isodate or mei:date">The date of the change must be recorded in an isodate attribute or date element.</sch:assert>
<sch:assert test="@resp or mei:respStmt[mei:name or mei:corpName or mei:persName]" role="warning">It is recommended that the agent responsible for the change be recorded in a resp attribute or in a name, corpName, or persName element in the respStmt element.</sch:assert>
</sch:rule>
</constraint>
</constraintSpec>
<remarks>
<p>Additions, deletions, and significant recoding should be noted, but not correction of minor typographical errors. It is recommended that revisions should be entered in reverse chronological order, with the most recent
<gi scheme="MEI">change</gi>
first. The
<att>resp</att>
attribute contains a pointer to an element containing info about the person/entity responsible for change. The
<gi scheme="MEI">edition</gi>
element can be used to designate an MEI encoding that has been so substantively changed that it constitutes a new version that supersedes earlier versions.</p>
</remarks>
<remarks>
<p>This element is modelled on an element in the Encoded Archival Description (EAD) standard.</p>
</remarks>
</elementSpec>