Of course, this might not be a document but that
is another permathread.
Geometric Markup Language (GML 3.0, 3.1)
Where XSD sees a lot of use is in the GML profiles
for GIS applications. In fact, once past the
UML diagrams, these guys are totally dependent
on XSD features and namespaces for creating
profiled aggregate schemas for their applications.
They use XSLT between a GML Core Schema Set, a
dependency analyszer, and a Schema Builder that
takes a list of components as input plus the
output of the analyzer to create an output schema.
At least in 2004, GML applications such as LandGML
use XLink/XPointer.
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