The following attributes occur on most elements. They are summarized once to save space and to make the additional attributes that occur on some elements stand out.
NOTE:On some elements, the ID is required while on others it is implied.
| Name | Value(s) | Type | Default Value |
|---|---|---|---|
| Arch | CDATA | #IMPLIED | |
| Conformance | CDATA | #IMPLIED | |
| ID | CDATA | #IMPLIED or #REQUIRED | |
| Lang | CDATA | #IMPLIED | |
| OS | CDATA | #IMPLIED | |
| Remap | CDATA | #IMPLIED | |
| Revision | CDATA | #IMPLIED | |
| RevisionFlag | CDATA | #IMPLIED | |
| UserLevel | CDATA | #IMPLIED | |
| Vendor | CDATA | #IMPLIED | |
| XrefLabel | CDATA | #IMPLIED |
Arch designates the computer or chip architecture to which the element applies; there is no default.
Conformance indicates standards conformance characteristics of the item named by the element.
Id is an identifying string for its element. It must be unique at least within the document and must begin with a letter.
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 indicates the operating system to which the element is applicable.
Remap contains an element name or similar semantic identifier assigned to the content in a previous markup scheme.
Revision indicates the editorial revision to which the element belongs; there is no default.
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 indicates the level of user experience to which element applies.
Vendor indicates the computer vendor to which the element applies. There is no default.
XRefLabel holds text to be used when a cross reference (XRef) is made to its element.
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