Daniel IT Blog: XSD and Namespaces

Monday, 2 January 2012

NCName = non-colonized name, QName = qualified name
a schema is not required to have a namespace. The noNamespaceSchemaLocation attribute provides hints for the locations of schema documents that do not have target namespaces (like schemaLocation)
import refers to declarations or definitions that are in a different target namespace while include refers to the same target namespace. Only global schema components can be imported
To validate a traditional XML 1.0 document which does not use namespaces at all, you must provide a schema with no target namespace
The redefine attribute allows simple and complex types, groups, and attribute groups that are obtained from external schema files to be redefined in the current schema