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TC 372 Technical Specification

2011-10-10T17:23:39Z

Dbalzer:

CEN TC 372 has prepared a draft for a CEN Technical Specification document, intended to provide guidance for implementors designing data exchange formats for EN 15744 and/or EN 15907-based metadata. On October 5th, 2011, this draft was submitted to CEN national member bodies for approval.

According to CEN regulations, a Technical Specification (TS) is to be reviewed every 3 years at the latest. This initial TS, entitled ''Guidelines for implementors of EN 15744 and EN 15907'', addresses the following issues:

* '''Encoding of EN 15744-based metadata'''. Since this standard is closely modelled after the Dublin Core Metadata Element Set (DCMES, ISO 15836), any encoding endorsed by the Dublin Core Metadata Initiative for use with the DCMES will also be accepted as a valid encoding for EN 15744.

* '''Encoding of EN 15907-based metadata in XML'''. This section gives a set of design rules to be observed when developing an XML-based exchange specification for EN 15907. It does not specify an "official" XML schema as such. The design rules cover several issues such as ways of expressing relationships, and an application-specific schema layer that separates data elements defined in EN 15907 from their specialisations which can (and should) be enriched with controlled vocabularies or other restrictions.

The current draft of the CEN Technical Specification [http://filmstandards.org/media/TC_372_WI_00372004_(E).pdf can be downloaded here].

EN 15907 Gauge

2011-08-29T19:55:33Z

Dbalzer: /* Definition from the standard */

==Definition from the standard==

{|style="background-color:#C8C8C8"
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The width of the film stock or other carrier (such as magnetic tape) used for the manifestation. Should include value and unit (e.g. "35 mm", "1/2 in.").
|}

==Data model==

{|cellpadding="2" width="100%" style="border: 1px solid darkgray; background-color:#dbc596"
|-
| style="background-color:#8dc5a9" valign="top" width="16%" |
Domain
| valign="top" |
[[EN 15907 Format]]
|-
| style="background-color:#8dc5a9" valign="top" width="16%"|
Range
| valign="top" |
Controlled vocabulary
|-
|}

[[EN 15907|EN 15907 Overview]]

EN 15907 Carrier type

2011-08-29T19:51:25Z

Dbalzer: Created page with "==Definition from the standard== {|style="background-color:#C8C8C8" | The type of physical carrier used for the manifestation. Digital manifestations may be bound to a physical ..."

==Definition from the standard==

{|style="background-color:#C8C8C8"
|
The type of physical carrier used for the manifestation. Digital manifestations may be bound to a physical
carrier (such as DVD) or exist without a defined carrier (such as online streaming media, podcasts, etc.).
|}

==Data model==

{|cellpadding="2" width="100%" style="border: 1px solid darkgray; background-color:#dbc596"
|-
| style="background-color:#8dc5a9" valign="top" width="16%" |
Domain
| valign="top" |
[[EN 15907 Format]]
|-
| style="background-color:#8dc5a9" valign="top" width="16%"|
Range
| valign="top" |
Controlled vocabulary
|-
|}

[[EN 15907|EN 15907 Overview]]

EN 15907 Agent type

2011-07-31T13:22:25Z

Dbalzer: Created page with "==Definition from the standard== {|style="background-color:#C8C8C8" | The class of Agent, e.g. Person, Corporate Body, Person Group, etc., may be omitted if no distinction is ma..."

==Definition from the standard==

{|style="background-color:#C8C8C8"
|
The class of Agent, e.g. Person, Corporate Body, Person Group, etc., may be omitted if no distinction is made between classes of Agents.
|}

==Data model==

{|cellpadding="2" width="100%" style="border: 1px solid darkgray; background-color:#dbc596"
|-
| style="background-color:#8dc5a9" valign="top" width="16%" |
Domain
| valign="top" |
[[EN 15907 Agent]]
|-
| style="background-color:#8dc5a9" valign="top" width="16%"|
Range
| valign="top" |
Controlled vocabulary
|-
|}

[[EN 15907|EN 15907 Overview]]

EN 15907 Instantiation type

2011-07-31T13:17:13Z

Dbalzer: Created page with "==Definition from the standard== {|style="background-color:#C8C8C8" | A term or phrase describing the item type relative to the duplication process (e.g. "original negative", "d..."

==Definition from the standard==

{|style="background-color:#C8C8C8"
|
A term or phrase describing the item type relative to the duplication process (e.g. "original negative", "dup negative", "positive", "original positive (reversal film)", "dupe positive", "Lavender", "image negative", "sound negative", "non-film analogue carrier", "non-film digital carrier").
|}

==Data model==

{|cellpadding="2" width="100%" style="border: 1px solid darkgray; background-color:#dbc596"
|-
| style="background-color:#8dc5a9" valign="top" width="16%" |
Domain
| valign="top" |
[[EN 15907 Item]]
|-
| style="background-color:#8dc5a9" valign="top" width="16%"|
Range
| valign="top" |
Controlled vocabulary
|-
|}

[[EN 15907|EN 15907 Overview]]

EN 15907 manifestationType

2011-07-19T20:39:36Z

Dbalzer: Created page with "==Definition from the standard== {|style="background-color:#C8C8C8" | A word or phrase denoting the relationship between the manifestation and the variant or cinematographic wor..."

==Definition from the standard==

{|style="background-color:#C8C8C8"
|
A word or phrase denoting the relationship between the manifestation and the variant or cinematographic
work that it manifests. May be omitted if no other manifestation is known. An unknown relationship should be indicated by a value of "unknown". Values for this attribute should be taken from a controlled vocabulary. A value of "original" shall indicate that all statements made in elements such as Format, Title or Language may be regarded as statements about an "original work", if such a concept is required.
|}

==Data model==

{|cellpadding="2" width="100%" style="border: 1px solid darkgray; background-color:#dbc596"
|-
| style="background-color:#8dc5a9" valign="top" width="16%" |
Domain
| valign="top" |
[[EN 15907 Manifestation]]
|-
| style="background-color:#8dc5a9" valign="top" width="16%"|
Range
| valign="top" |
Controlled vocabulary
|-
|}

[[EN 15907|EN 15907 Overview]]

EN 15907 variantType

2011-07-18T09:29:54Z

Dbalzer: Created page with "==Definition from the standard== {|style="background-color:#C8C8C8" | A term characterising the kind of variation that gives rise to an instance of Variant. Values for this attr..."

==Definition from the standard==

{|style="background-color:#C8C8C8"
|
A term characterising the kind of variation that gives rise to an instance of Variant. Values for this attribute
should be taken from a controlled vocabulary. Examples are "censored", "dubbed", "TV version", etc.
|}

==Data model==

{|cellpadding="2" width="100%" style="border: 1px solid darkgray; background-color:#dbc596"
|-
| style="background-color:#8dc5a9" valign="top" width="16%" |
Domain
| valign="top" |
[[EN 15907 Variant]]
|-
| style="background-color:#8dc5a9" valign="top" width="16%"|
Range
| valign="top" |
Controlled vocabulary
|-
|}

[[EN 15907|EN 15907 Overview]]

Approaching the subject of a film work

2011-06-20T22:12:17Z

Dbalzer:

''From the [[TC 372 Workshop Compendium]]''

== A worked example ==

'''Documentary films''' are typically searched for '''by subject'''. While content description and keyword indexing are mainstay procedures in film cataloguing, today's networked environment allows for almost anything to be related to a cinematographic work in the role of ''subject''.

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |
<mediaplayer image='http://filmstandards.org/media/hobuse_aasta_frame.png'>http://filmstandards.org/media/hobuse_aasta_clip1_ori.flv</mediaplayer>
 

Excerpted from: Hobuse Aasta (1991) by Andres Sööt. Version with English commentary from Eesti Filmiarhiiv, Tallinn. Used with permission.


| valign="top" width="405px" |
This is a documentary about events in Estonia before the country gained independence from the Soviet Union in early 1991. The clip contains images from the parliamentary assembly of 26 January, 1990, in which an amendment of the constitution was attempted.

The '''content''' of this clip clearly '''focuses on people''', in this case on those that represented the leading political class in Estonia until 1990.

|}

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |[[File:Has-as-subject-p.jpg|400px]] 



| valign="top" width="405px" |
The individuals depicted in the clip cannot be regarded as active contributors to the film work, since their activity would also have taken place in the absence of a camera. In cases where a person is not an ''Agent'' in the sense or our reference model, we can still construct relationships to persons or other agent entities by using the semantics of ''Subject''.

EN 15907 defines a '''HasAsSubject relationship''' for connecting any entity type (including film and non-film objects) to a cinematographic work. In this example, we refine this to a '''showsPerson''' relationship, using a specialisation from a corresponding type vocabulary.
|}

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |[[File:Hobuse-aasta-xmltrans.jpg|400px]] 



| valign="top" width="405px" |
We now combine our HasAsSubject '''references''' with other forms of subject description, in this case, two '''synopses''' taken from published sources, and insert them into a filmographic record for ''Hobuse Aasta''.

The [http://filmstandards.org/demo/xml/transform.php?src=004/hobuse_aasta.xml transformed view] example groups all subject-related statements under a ''Subject info'' section (click on the symbol to open). Here is the [http://filmstandards.org/demo/xml/004/hobuse_aasta.xml raw XML code] for this example.
|}

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |[[File:Has-as-subject-ptarget.jpg|400px]] 



| valign="top" width="405px" |
Taking a closer look at the '''Target element''' in the encoding of the subject reference, we see an '''identifier''' that links our filmographic record to an [http://viaf.org/viaf/17864306/ external resource]. Since viaf.org can supply information as [http://viaf.org/viaf/17864306/rdf.xml RDF data structures], this identifier reference can be readily utilised in a Linked Open Data (LOD) environment.

The '''SectionID''' element has several attributes defined in an extension to the core EN 15907 XML schema. These attributes define a spatio-temporal region in the cinematographic medium to which the subject reference applies.
|}

{| style="float: right; border: 1px solid #BBB; margin: .46em 0 0 .2em;"
|-
| valign="top" width="405px" |
<mediaplayer image='http://filmstandards.org/media/hobuse_aasta_frame_bw.png'>http://filmstandards.org/media/hobuse_aasta_clip1_mod.flv</mediaplayer>
 



| valign="top" width="405px" |
This is a possible rendering of the '''SectionID attribute values''' as an overlay mask applied to the above clip.

Note that this example uses several different renderings for moving regions. In fact, the extended definition for SectionID is still incomplete, awaiting further input from the user community. The definition also lacks ways of expressing references to a particular manifestation of the film work in cases where these are known to have different durations.

Spatiotemporal regions can also be used for computing relevance factors for information retrieval. As an example, a film work can be assumed to be more relevant if a person of interest can be seen for longer periods of time and if it occupies larger areas on the screen.

The MPEG-7 standard defines highly elaborate data structures for describing spatiotemporal segments of moving images. To what extent these definitions should be adopted as extensions to EN 15907 is currently an open issue.
|}

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