down
This link relation is defined in http://tools.ietf.org/html/draft-divilly-atom-hierarchy-03.
It is used by the
Content Store
web service to represent hierarchical relationships. A section's
subsection's, for example, are represented by down
links. You can navigate down through a publication's section hierarchy
by simply following down
links. You can also use
down
links to navigate down a tag hierarchy.
The following example shows a link of this type:
<entry> ... <link xmlns:thr="http://purl.org/syndication/thread/1.0" rel="down" href="http://host-ip-address/webservice/escenic/section/3461/subsections" type="application/atom+xml" thr:count="number-of-entries"/> ... </entry>
The count
attribute is defined in
RFC
4685. If present, it specifies the number of entries that will
be returned by following the link.