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ACTION-331: LC comment 2398 for ontology doc (done)

From: Florian Stegmaier <stegmai@dimis.fim.uni-passau.de>
Date: Mon, 8 Nov 2010 13:53:43 +0100
Message-Id: <A33A48A1-49BC-4016-A741-D9A2E3E55D9E@dimis.fim.uni-passau.de>
To: public-media-annotation@w3.org
Hi all!

Regarding to my action points, i have checked the comment was reflected in the document. Everything is fine with respect to the comments.


===== Comment:
Is this specification going to be a Rec or a Note?
because if this is going to be a Rec, you might be in trouble with your lightweight approach to mappings

MAWG Resolution:

As it is mentioned in the Ontology for Media Resource 1.0, Status of this Document section; "The Working Group expects to advance this specification to Recommendation Status".

By "our lightweight approach to mappings", I assume that you refer to the lack of formal semantics or of (recommendation of) use of OWL constructs in the document. Our definition of Ontology is equally lightweight: a shared and agreed-upon set of classes and properties. As we do not enforce these classes and properties to be modeled in OWL, we also described the mappings with as few semantic commitments as possible: the mappings can be implemented in XSLT, in Java or whatever language/paradigm a user might be interested in. The mappings are therefore described in simple prose. An RDF version of the Media Ontology is being produced in the Working Group, and an RDF/OWl version of the mappings can also be considered, but formal and strong OWL constructs are very constraining in semantics, and hard to maintain in a consistent manner between vocabularies we have no control over. We therefore decided to describe the mappings, still in prose, but with reference to the SKOS vocabulary rather than in terms of OWL constraints.
The mappings tables included in the Ontology specification are established from the Media Ontology's core properties to various multimedia metadata formats. This list of formats is not closed, nor does it pretend to be exhaustive. A future publication of this specification may include additional mappings if a need or use case is established for these new mappings.
You will read this statement in the Ontology specification.

To respond to you further email
The current mapping tables will be included in the Media Ontology Recommendation into a normative section. To keep this list of formats open, we also plan to track future mappings in an informative WG Note to allow description of mappings for future formats. These mappings may serve as input for a future version of a Media Ontology Resources specification.
Dipl. Inf. Florian Stegmaier
Chair of Distributed Information Systems
University of Passau
Innstr. 43
94032 Passau

Room 248 ITZ

Tel.: +49 851 509 3063
Fax: +49 851 509 3062

Received on Monday, 8 November 2010 12:54:13 UTC

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