global attributes provided by XLink

Type definition attribute

type

Locator attribute href

Semantic attributes role, arcrole, title

Behavior attributes show, actuate

Traversal attributes label, from, to

The XLink type attribute

• simple: a simple link • extended: an extended, possibly multi-

resource, link • locator: a pointer to an external

resource • resource: an internal resource • arc: a traversal rule between resources • title: a descriptive title for another

linking element

V-type element

• By convention, when an attribute includes the type attribute with a value V, we will refer to it as a V-type element, no matter what its actual name is.

<!-- bookref is a locator-type element -->

<bookref link:type="locator“ …

Table 1 - Attribute usage (from the W3C specification)

Attribute simple extended locator arc resource title

type R R R R R R

href O   R    

role O O O   O  

arcrole O     O    

title O O O O O  

show O     O    

actuate O     O    

label     O   O  

from       O    

to       O    

Table 2 - Significant child types (from the W3C specification)

Parent type Significant child element types

simple -

extended locator, arc, resource, title

locator title

arc title

resource -

title -