Namespace:	{global namespace}
Type:	ModelImport
Content:	complex, 5 elements
Defined:	locally within Model complexType in vo-dml.xsd; see XML source

XML Representation Summary

Content:

name, identifier?, version?, url, documentationURL

</import>

Content model elements (5):

Included in content model of elements (1):

Definition Locations

Within global complexTypes (1):
Model [def]

An 'import' element indicates a dependency on an external, predefined VO-DML data model. Types from that model may be used for referencing, extension and assignment to attributes. Types from the external model MUST NOT be used for composition relationships. 'identification' relations to elements from that model may be used to indicate some kind of equivalence between elements in the current model and the external elements.

TBD We might require that every data model MUST include a version of the IVOA data model to gain access to the standard primitive types and some other types. We may require that that standard model should be included *completely*, i.e. including all its type definitions explicitly. This would be similar to treating it as a UML Profile, rather than an import. This would mean that the most common type assignments for attributes can be checked within the model and not require importing the remote model during validation.

XML Source (see within schema source)

<xsd:element maxOccurs="unbounded" minOccurs="0" name="import" type="ModelImport">

<xsd:annotation>

<xsd:documentation>

An 'import' element indicates a dependency on an external, predefined VO-DML data model.
Types from that model may be used for referencing, extension and assignment to
attributes.
Types from the external model MUST NOT be used for
composition relationships.
'identification' relations to elements from that model may be used to indicate some kind of
equivalence between
elements in the current model and the external elements.

</xsd:documentation>

<xsd:documentation>

TBD We might require that every data model MUST include a version of the IVOA data model
to gain access to the standard
primitive types and some other types.
We may require that that standard model should be included *completely*,
i.e. including all its type definitions explicitly.
This would be similar to treating it as a UML Profile, rather than an import.
This would mean that the most common type assignments for attributes
can be checked within the model and not require
importing the remote model during validation.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Content Element Detail (all declarations; 5)

Type:	xsd:anyURI, simple content
Defined:	locally within ModelImport complexType

URL where a documentation HTML file for the remote model can be downloaded. This SHOULD be a document that contains anchors for each element thta has as name attribute the vodml-id of that element. I.e. it is assumed that the vodml-id-s of the imported types can be added onto this documentationURL (should end with a #?) so that a direct link to the documentation for a referenced data model element can be found.

XML Source (see within schema source)

<xsd:element minOccurs="1" name="documentationURL" type="xsd:anyURI">

<xsd:annotation>

<xsd:documentation>

URL where a documentation HTML file for the remote model can be downloaded.
This SHOULD be a document that contains anchors for each element thta has as name attribute the vodml-id of that element.
I.e. it is assumed that the
vodml-id-s of the imported types can be added onto this documentationURL
(should end with a #?) so that a direct link to the documentation for a referenced data model element can be found.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	xsd:string, simple content
Defined:	locally within ModelImport complexType

A string holding the identifier by which the imported model is registered in an IVOA compatible registry. Must be the same value as the 'identifier' of the imported model.

XML Source (see within schema source)

<xsd:element maxOccurs="1" minOccurs="0" name="identifier" type="xsd:string">

<xsd:annotation>

<xsd:documentation>

A string holding the identifier by which the imported model is registered in an
IVOA compatible registry. Must be the same value as the 'identifier' of the imported model.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	ModelName, simple content
Defined:	locally within ModelImport complexType

Name by which imported model is used in the current model and its documentation. This name MUST be the same as the 'name' of the model definition in that remote document. For all utypes pointing to elements in the imported model MUST use this name as prefix.

XML Source (see within schema source)

<xsd:element minOccurs="1" name="name" type="ModelName">

<xsd:annotation>

<xsd:documentation>

Name by which imported model is used in the current model and its documentation.
This name MUST be the same as the 'name' of the model definition in that remote document.
For all utypes pointing to elements in the imported model MUST use this name as prefix.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	xsd:anyURI, simple content
Defined:	locally within ModelImport complexType

URL from which the VO-DML model document can be downloaded. Note, could likely be done through a registry once ivoId is known. TBD SHOULD this be a generic URI, or can we insits on URL?

XML Source (see within schema source)

<xsd:element minOccurs="1" name="url" type="xsd:anyURI">

<xsd:annotation>

<xsd:documentation>

URL from which the VO-DML model document can be downloaded.
Note, could likely be done through a registry once ivoId is known.
TBD SHOULD this be a generic URI, or can we insits on URL?

</xsd:documentation>

</xsd:annotation>

</xsd:element>

Type:	xsd:string, simple content
Defined:	locally within ModelImport complexType

Version of the imported model.

XML Source (see within schema source)

<xsd:element minOccurs="0" name="version" type="xsd:string">

<xsd:annotation>

<xsd:documentation>

Version of the imported model.

</xsd:documentation>

</xsd:annotation>

</xsd:element>

This XML schema documentation has been generated with DocFlex/XML RE 1.8.0 using DocFlex/XML XSDDoc 2.2.0 template set.

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