XSLT 2.0 and XPath 2.0 Programmer's Reference, 4th Edition (398 page)

wrox:title	Matches the name that has local part title and whose namespace is the namespace currently bound to the prefix wrox .
*:title	Matches any name whose local part is title , whether or not it is in a namespace.

Kind Tests

As we have seen, a
NodeTest
is either a
NameTest
or a
KindTest
.
NameTests
were described in the previous section; this section describes
KindTests
. A
KindTest
represents a constraint on the kind of nodes that are selected by an
AxisStep
.

Expression	Syntax
KindTest	DocumentTest | ElementTest | AttributeTest | PITest | CommentTest | TextTest | AnyKindTest
PITest	processing-instruction ( (NCName | StringLiteral)? )
DocumentTest	document-node ( ElementTest? )
CommentTest	comment ( )