Hi,
Dan Connolly wrote:
OK, I fixed those in v 1.6 2007/01/15 18:45:41
http://www.w3.org/2001/sw/grddl-wg/td/testft.py
http://homer.w3.org:8123/?cs=b8dc6c6a3cc4
Great, thanks for sharing this mini implementation, as mentioned we will
be starting to collect these for CR stage.
* assertedBy: make sure that dan:dwc is a foaf:Agent (such as
foaf:Person) or an earl:Software as described in [1].
Hmm... I believe I am a foaf:Agent; does EARL require that I say so
explicitly? In the same file? That's odd. I already say I'm a
person elsewhere.
No, if dan:dwc is of type foaf:Person (or any other foaf:Agent subclass)
then it conforms to the spec.
The spec seems to say that the range of assertedBy is earl:Assertor;
isn't that enough? Hmm... Asserter has "allowable types"
SingleAssertor and CompoundAssertor. The prose seems to say that
every Asserter is either a SingleAssertor or a CompoundAssertor; you
can say that using OWL:
earl:Asserter owl:unionOf (earl:SingleAssertor earl:CompoundAssertor).
We used owl:oneOf, also for earl:SingleAssertor. I believe effectively
it is the same outcome.
In fact, those tables in Appendix B are pretty nice; they're just a few
lines of XSLT away from being nice RDFS/OWL schemas. Why are they
non-normative?
To avoid having the RDF/XML and the tables be both normative. However, I
grant your point and we will re-discuss this issue.
When you say "required properties," do you mean owl:minCardinality 1?
Correct.
Looking at [1], I see
"An Assertion must have at least the following properties"
that's odd too.
It should mean "An instance of an Assertion class must contain the
following properties". Would that be a more precise way to phrase
"owl:minCardinality 1" in simple text?
[1] <http://www.w3.org/TR/2006/WD-EARL10-Schema-20060927/#assertor>
Regards,
Shadi
--
Shadi Abou-Zahra Web Accessibility Specialist for Europe |
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