What links do with link-ends
· A link identifies where its ends are
n Using some kind of locators
n URI#XPointer will be the locator for XML
n URI#scheme()scheme() in general
· A link attaches metadata to each end
n Its formal role in relation to the other ends
n A title by which to refer to it (say, in menus)
n Some traversal behaviors
n Arcs to say which traversals happen
· Link itself can also have type, other info