The form of this is flexible and will presumably be governed by the application or conventions. A number of standard terms are provided by ISO12620 (e.g. 'originationDate') and could be used. PERSON is provided as useful object for authors, owners, etc.
Note that TecML/CML files may be archived as single entities and it may then be extremely valuable to include ADMIN information.
An optional/repeatable list of XVAR, XHTML, XLIST and PERSON which should allow any complexity of content.