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.
This information is related to the xml file generator in
case it differs from the model generator. The model generator should be
denoted in the software tag.
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 at least
the abstract tag and additionally some or all of the
tags detail, keywords, msc2000
and software.
For describing the model there should be a few short
concise sentences within the abstract tag and a longer
description within the detail tag. The first sentence of
the abstract tag should be useful for example for lists
of models where a user could choose from. So it should cover the main idea.
The keywords tag contains at least
one keyword tag. The keywords should be helpful, for
example, for making a search on a model data base.
The msc2000 tag includes one primary
tag and some secondary tags for giving a code
corresponding to the Mathematics
Subject Classification 2000, see the listings at European Mathematical Society or the American Mathematical Society.
The software tag is for some
information about what program was used for producing this model. This
information is related to the model generator in case it differs from the
xml file generator. The xml file generator should be denoted in the meta tag with the generator attribute.