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HTTP Vocabulary in RDF 1.0 - 'Entity' class request

From: Jonathan Rees <jar@creativecommons.org>
Date: Thu, 17 Dec 2009 08:13:21 -0500
Message-ID: <760bcb2a0912170513y234b2c1dud4a8aa9b95ac0f17@mail.gmail.com>
To: public-earl10-comments@w3.org
(bcc: AWWSW TF <public-awwsw@w3.org> )

I'm sorry I wasn't aware of the November 30 deadline, but as the
document is not in last call I thought I would send along some
comments anyhow.

I would like to suggest that the vocabulary include some treatment of
HTTP entities. This would be useful in validating cache and proxy
correctness, for example in accounting for the 'etag' header. It would
also be useful to the TAG in some of its ontology work, and I believe
in many other applications.

You could, for example, have an Entity class. Each Entity would have a
subset of the information carried in some Message; there would have to
be a property that related an Entity to a Message, similar to 'part

The MessageHeaders of an Entity would only include entity-headers, not

For minimum disruption to what you have so far Entity could be made a
subclass of Message, which I think would be OK (i.e. an Entity is a
Message that has no headers that are not entity-headers). A more
principled approach would be to have a common superclass of Message
and Entity, but I don't know what you'd call that class. Probably many
other designs are possible, such as having no common superclass and a
disjoint suite of properties for the two.

-- some minor points:

May I suggest that using the namespace prefix 'http:' is a bit
confusing. It is technically correct but is very distracting because
of dissonance with the 'http:' URI scheme prefix. I would suggest
something like 'ht:' or 'htp:' or 'hvr:' instead.

I find it odd that while most of the spec uses camelCase, 'abs_path'
uses an underscore. May I suggest calling it 'absolutePath'.

Received on Thursday, 17 December 2009 14:07:45 UTC

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