A meta tag must have one of the
attributes generator or date. The meta
tag with generator attribute is for some information
about what program was used for producing this xml description file and with
the date attribute it is for giving the date when this
xml description file was produced.
A version tag can have a type
attribute which is optional. The type attribute can be dump
(default), beta or final. This is
useful for distinguishing between different versions of a model.
The title tag is necessary. It should
contain a short prezise name for this model.
The authors tag is for bundling some author
tags. Inside them there are five tags. One for the first name, one
for the last name, one for some information about the affiliation
of this author, one for his e-mail address and one optional url
tag for an internet address.
The affiliation tag embraces two tags
organization and address. The organization
is for the company, university or similar, and the address
is for the postal address of this author.
The description tag encloses
the abstract tag which contains a single line verbal
description of the geometry.