- Arch
Arch designates the
computer or chip architecture to which the element applies;
there is no default.
- Conformance
Conformance indicates standards conformance
characteristics of the item named by the element.
- ID
Id is an identifying string for its
element. It must be
unique at least within the document and
must begin with a letter.
- Lang
Lang should be a
language code drawn from ISO 639 (perhaps extended with
a country code drawn from ISO 3166, as en_US). Use
it when you need to signal your application to change
hyphenation and other display characteristics.
- OS
OS indicates the operating system to which the element is
applicable.
- Remap
Remap contains an element name or similar semantic
identifier assigned to the content in a previous
markup scheme.
- Revision
Revision
indicates the editorial revision to which the element belongs;
there is no default.
- RevisionFlag
RevisionFlag
indicates the revision status of element; the default is that element
hasn't been revised. RevisionFlag is intended only for simple revision
management: to track the entire history of a document use a proper
revision control system. Use RevisionFlag for indicating changes
from one version to the next, no more. As you and your interchange
partners review a particular revision, you can use the Off value to
indicate that a subelement of a Changed, Added, or Deleted element has
been agreed upon.
- UserLevel
UserLevel indicates the level of user experience to which
element applies.
- Vendor
Vendor indicates the computer vendor to which the
element applies. There is no default.
- XrefLabel
XRefLabel holds text
to be used when a cross reference (XRef)
is made to its element.