Each NewsAgent element is defined using a set of ten attributes from ISO11179:
Language: en Datatype: Character String Maximum Occurrence: UnlimitedThese attributes will not be repeated in the definitions below, however they do form part of each formal element definition.
The definitions provided here include both the conceptual and reprensentational form of the Dublin Core elements. The Definition attribute captures the semantic concept and the Datatype and Comment attributes capture the data representation.
NewsAgent elements describe resources. In NewsAgent, a resource is typically a Web-accessible journal article or news item. A more general definition of resource can be found in [RFC2396];
A resource can be anything that has identity. Familiar examples include an electronic document, an image, a service (e.g., "today's weather report for Los Angeles"), and a collection of other resources. Not all resources are network "retrievable"; e.g., human beings, corporations, and bound books in a library can also be considered resources.
Name: Title
Identifier: Title
Definition: A name given to the resource.
Obligation: Mandatory
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Typically, Title will be a name by which the resource is
formally known.
For NewsAgent, Title may be truncated during display for single
line headlines. Title may also be obtained from the <TITLE>
tag if embedded HTML <meta> tags are not available.
Name: Creator
Identifier: Creator
Definition: An entity primarily responsible for making the content of
the resource.
Obligation: Mandatory
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Examples of a Creator include a person, an organisation,
or a service.
Typically this element indicates the author of an article.
For NewsAgent, use a name, an email address or a combination
of both as the value of this element.
Name: Subject and Keywords
Identifier: Subject
Definition: The topic of the content of the resource.
Obligation: Highly desirable/Mandatory
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Typically, a Subject will be expressed as keywords,
key phrases or classification codes that describe a topic
of the resource.
Recommended best practice is to select a value from a
controlled vocabulary or formal classification scheme.
Separate multiple terms using semi-colon (';').
For NewsAgent, use this element to supply keywords, product
names and a NewsAgentTopic (see the NewsAgentTopic
classification scheme).
Supplying a NewsAgentTopic is mandatory.
Name: Description
Identifier: Description
Definition: An account of the content of the resource.
Obligation: Optional
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Description may include but is not limited to: an abstract,
table of contents, reference to a graphical representation
of content or a free-text account of the content.
For NewsAgent, use this element to supply a short abstract.
Name: Publisher
Identifier: Publisher
Definition: An entity responsible for making the resource available
Obligation: Mandatory
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Examples of a Publisher include a person, an organisation,
or a service.
Typically, the name of a Publisher should be used to
indicate the entity.
Name: Date
Identifier: Date
Definition: A date associated with an event in the life cycle of the
resource.
Obligation: Optional
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Typically, Date will be associated with the creation or
availability of the resource. Recommended best practice
for encoding the date value is defined in a Dublin Core
profile of ISO 8601 [W3CDTF] and follows the YYYY-MM-DD
format.
The profile includes the use of a '/' (forward slash) to
indicate a date range, e.g.
1999-06 / 2000-01
is 'June 99 until Jan 2000'. Either half of the range
can be left off to indicate an open-ended range.
For NewsAgent, use this element to supply an expiry date
using a dateType of 'Valid'.
Name: Resource Type
Identifier: Type
Definition: The nature or genre of the content of the resource.
Obligation: Optional
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Type includes terms describing general categories, functions,
genres, or aggregation levels for content. Recommended best
practice is to select a value from a controlled vocabulary
(for example, the working draft list of Dublin Core Types
[DCT1]). To describe the physical or digital manifestation
of the resource, use the FORMAT element.
For NewsAgent, select a value from the following list:
- list required!
Name: Format
Identifier: Format
Definition: The physical or digital manifestation of the resource.
Obligation: Optional
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Typically, Format may include the media-type or dimensions of
the resource. Format may be used to determine the software,
hardware or other equipment needed to display or operate the
resource. Examples of dimensions include size and duration.
Recommended best practice is to select a value from a
controlled vocabulary (for example, the list of Internet Media
Types [MIME] defining computer media formats).
For NewsAgent, use this element to supply a MIME type.
Name: Resource Identifier
Identifier: Identifier
Definintion: An unambiguous reference to the resource within a given context.
Obligation: Optional
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Recommended best practice is to identify the resource by means
of a string or number conforming to a formal identification
system.
Example formal identification systems include the Uniform
Resource Identifier (URI) (including the Uniform Resource
Locator (URL)), the Digital Object Identifier (DOI) and the
International Standard Book Number (ISBN).
For NewsAgent, use this element to supply a URL.
Where metadata is embedded in an HTML Web page, the URL will
be assumed to be the URL for the resource if not supplied
explicitly.
Name: Coverage
Identifier: Coverage
Definition: The extent or scope of the content of the resource.
Obligation: Optional
Registration
Authority: Dublin Core Metadata Initiative
Version: 1.1
Comment: Coverage will typically include spatial location (a place name
or geographic co-ordinates), temporal period (a period label,
date, or date range) or jurisdiction (such as a named
administrative entity).
Recommended best practice is to select a value from a
controlled vocabulary (for example, the Thesaurus of Geographic
Names [TGN]) and that, where appropriate, named places or time
periods be used in preference to numeric identifiers such as
sets of co-ordinates or date ranges.
For NewsAgent, use to supply spatial coverage. Select value
from the following list:
- UK
- US
- Europe
- Worldwide
Name: Contact
Identifier: Contact
Definition: A contact point for further information about the resource.
Obligation: Optional
Registration
Authority: NewsAgent Project
Version: 2.0
Comment: This element may be used to indicate the supplier or help-desk
for a product.
For NewsAgent, use a name, an email address or a combination
of both as the value of this element.
<meta name="DC.Title" content="Browsing Video over the
Web">
<meta name="DC.Creator" content="Peter J. Thomas -
Peter.Thomas@uwe.ac.uk">
<meta name="DC.Subject" content="video; Web; multi-media;
interactive">
<meta name="DC.Subject" scheme="NATopic"
content="research; reports; information technology;
WWW">
<meta name="DC.Description" content="A research report
investigating the issues associated with browsing video over the
Web">
<meta name="DC.Publisher" content="UKOLN, University of
Bath">
<meta name="DC.Date.Valid" content="/1999-09">
<meta name="DC.Type" scheme="NAType" content="article">
<meta name="DC.Format" content="text/html">
<meta name="DC.Identifier"
content="http://www.ariadne.ac.uk/issue19/web-research/">
<meta name="DC.Language" content="en-uk">
<meta name="DC.Coverage" scheme="NACoverage" content="Worldwide">
<meta name="NewsAgent.Contact" content="Ariadne editors -
ariadne@ukoln.ac.uk">
[DC11] Proposed Definitions for Dublin Core Version 1.1
<URL:http://www.dstc.edu.au/RDU/DCAC/PR-DCV11.html>
[DCT1] List of Resource Types. Dublin Core Draft Working Group
Report.
<URL:http://purl.org/DC/documents/working_drafts/wd-typelist.htm>
[ISO11179] ISO 11179 - Specification and Standardization of Data
Elements, Parts 1-6.
<URL:ftp://sdct-sunsrv1.ncsl.nist.gov/x3l8/11179/>
[ISO639] ISO 639 - Codes for the representation of names of
languages.
<URL:http://www.oasis-open.org/cover/iso639a.html>
[ISO3166] ISO 3166 - Codes for the representation of names of
countries.
<URL:http://www.oasis-open.org/cover/country3166.html>
[MIME] Internet Media Types.
<URL:http://www.isi.edu/in-notes/iana/assignments/media-types/media-types>
[RFC1766] Tags for the Identification of Languages, Internet RFC
1766.
<URL:http://info.internet.isi.edu/in-notes/rfc/files/rfc1766.txt>
[RFC2396] Uniform Resource Identifiers (URI): Generic Syntax,
Internet RFC 2396.
<URL:http://info.internet.isi.edu/in-notes/rfc/files/rfc2396.txt>
[RFC2413] Dublin Core Metadata for Resource Discovery. Internet
RFC 2413.
<URL:http://info.internet.isi.edu/in-notes/rfc/files/rfc2413.txt>
[TGN] Getty Thesaurus of Geographic Names.
<URL:http://www.gii.getty.edu/tgn_browser>
[W3CDTF] Date and Time Formats, W3C Note.
<URL:http://www.w3.org/TR/NOTE-datetime>