Call for comments on MAWG Terminology

MFWG folks,

I'd send this *call for comments* for the terminologies used in our Ontology
document to be synced with MF usages. Please take a look at the current
terminologies below and let us know your view. If our terminologies seem to
be elaborated and clarified, feel free to let us know...

Thanks your time and consideration.



Daniel (for Media Annotation WG)

-- 
Soohong Daniel Park
Standard Architect, http://blog.naver.com/natpt
DMC Business, Samsung Electronics, KOREA

==========================

http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html
2.1 Terminology

The keywords *MUST*, *MUST NOT*, *SHOULD* and *SHOULD NOT* are to be
interpreted as defined in RFC
2119<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#rfc2119>
[Definition: *Media Entity*]

A media entity is either a conceptual object (for example the play Hamlet by
Shakespeare) or a concrete object: a media file of one interpretation of
Hamlet, possibly online and possibly identified by a URL. These two types
are respectively refered to by the terms of
resource<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#resource>and
representation<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#representation>in
the RDF
Schema vocabulary <http://www.w3.org/TR/rdf-schema/>. We adopt here this
terminology in order to be consistent with the terminological choices of the
Media Fragments Working Group <http://www.w3.org/2008/WebVideo/Fragments/>,
which is closely related to our own activity. Another way of expressing this
difference and thus the variety of media entities taken into account in this
Working Group is the notions of Work and Item in
FRBR<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#frbr>(Note:
FRBR also considers two other "intermediate" entity status between a Work
and an Item)
[Definition: *Property*]

A property is an element from an existing metadata format for describing media
entities<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#media-entity>on
the web. or an element from the core vocabulary defined in this
Working
Group. For example, the Dublin
Core<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#dc>
* creator* element and the Media Ontology *creator* element are properties.
A property links a Media Entity with a value: dc:creator links a given
representation<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#representation>with
the value of its creator (Dublin Core specifies: "Examples of a Creator
include a person, an organization, or a service.", this value can be
specified as a simple string or as the URI representing the creator. The set
of properties selected to be part of the Media Ontology Core vocabulary is
listed in section *4 Property
definition*<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#property-definition>
.
[Definition: *Resource*]

A resource is an abstract concept, from which
representation(s)<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#representation>can
be derived: the general notion of the play Hamlet by Shakespeare for
example, a "picture of a sunset", a concerto for violins etc.
[Definition: *Representation*]

A representation is a time-dependent document, or part of document,
identifiable by a URI. For example: a portion of raw data of a video, an
image, an audio, a text, any other time-aligned data or a composition of
them.
[Definition: *Mapping*]

The notion of Mapping refers to the description of relations between
elements of metadata schemas; in our case the mapping concerns the
Vocabularies "in scope", and the
properties<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#property>of
the core vocabulary of the Media Ontology. These Mappings are presented in
section *4.2 Property mapping
table*<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#property-mapping-table>
.
[Definition: *Property value types*]

Property value types are the types of values used in a
property<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#property>.
Property value types are defined in sec. *3 Property value types definitions
*<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#property-value-types-definitions>.
They are relying mostly on XML Schema data types [XML Schema
2<http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#xmlschema2>
].