CEN/TS 16371:2012
(Main)Guidelines for implementors of EN 15744 and EN 15907
Guidelines for implementors of EN 15744 and EN 15907
This Draft Technical Specification outlines technological approaches towards implementing EN 15907 and (partially) EN 15744 for the purpose of exchanging metadata about cinematographic works.
Richtlinien für die Implementierer von EN 15744 und EN 15907
Smernice za uporabnike EN 15744 in EN 15907
Ta tehnična specifikacija določa tehnološke pristope k izvajanju standarda EN 15907 in (delno) standarda EN 15744 za namen izmenjave metapodatkov o filmskih delih.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2012
Smernice za uporabnike EN 15744 in EN 15907
Guidelines for implementors of EN 15744 and EN 15907
Richtlinien für Implementierer von EN 15744 und EN 15907
Ta slovenski standard je istoveten z: CEN/TS 16371:2012
ICS:
35.240.30 Uporabniške rešitve IT v IT applications in information,
informatiki, dokumentiranju in documentation and
založništvu publishing
37.060.99 Drugi standardi v zvezi s Other standards related to
kinematografijo cinematography
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL SPECIFICATION
CEN/TS 16371
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
February 2012
ICS 35.240.30; 37.060.99
English Version
Guidelines for implementors of EN 15744 and EN 15907
Richtlinien für Implementierer von EN 15744 und EN 15907
This Technical Specification (CEN/TS) was approved by CEN on 14 February 2012 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 16371:2012: E
worldwide for CEN national Members.
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Options for implementing the CEN metadata standards for cinematographic works .5
4.1 General .5
4.2 Data exchange options for EN 15744.5
4.2.1 General .5
4.2.2 EN 15744 mapped to DCMES .5
4.2.3 EN 15744 native.5
4.3 EN 15907 Data exchange using XML .5
4.3.1 General .5
4.3.2 Wrapper element .5
4.3.3 Description units.5
4.3.4 Expressing Relationships .6
4.3.5 Adding Type Vocabularies .7
4.3.6 Adding elements from foreign namespaces .8
4.3.7 Representing metadata statements outside the scope of EN 15907 .9
Annex A (informative) List of EN 15907 elements and attributes that may be redefined in an
application-specific schema layer . 10
Bibliography . 12
Foreword
This document (CEN/TS 16371:2012) has been prepared by Technical Committee CEN/TC 372 “Project
Committee - Cinematographic Works”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland, Turkey and the United Kingdom.
1 Scope
This Technical Specification outlines technological approaches towards implementing EN 15907 and
(partially) EN 15744 for the purpose of exchanging metadata about cinematographic works.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 15744, Film identification – Minimum set of metadata for cinematographic works
EN 15907:2010, Film identification – Enhancing interoperability of metadata – Element sets and structures
ISO 15836:2009, Information and documentation – The Dublin Core metadata element set
ISO/IEC 19757-2:2008, Information technology – Document Schema Definition Language (DSDL) – Part 2:
Regular-grammar-based validation – RELAX NG
ISO/IEC 19757-4:2006, Information technology – Document Schema Definition Languages (DSDL) – Part 4:
Namespace-based Validation Dispatching Language (NVDL)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 19757-2:2008 and the following
apply.
3.1
encoding scheme
a set of definitions for the structured representation of complex data objects
3.2
foreign element
element with a name whose namespace URI is not the namespace URI for the parent schema
3.3
instance
XML document that is being validated with respect to an XML schema
3.4
schema
XML-encoded set of declarative rules against which one or more instances can be validated
3.5
URI
compact string of characters that uses the syntax defined in IETF RFC 2396 to identify an abstract or physical
resource
3.6
valid with respect to a schema
member of the set of XML documents described by the schema
3.7
validator
software module that determines whether a schema is correct and whether an instance is valid with respect to
a schema
4 Options for implementing the CEN metadata standards for cinematographic
works
4.1 General
Neither EN 15744 nor EN 15907 mandate a particular representation for conformant metadata. Interoperability
is assumed if metadata is communicated in a format that (1) preserves the meaning as defined in the
standards, and (2) can be produced and/or consumed by all parties taking part in an exchange of metadata.
Both standards specify element names and associated definitions, while EN 15907 additionally specifies
relationships between elements.
4.2 Data exchange options for EN 15744
4.2.1 General
EN 15744 specifies fifteen metadata elements similar in intent to many „core“ specifications such as the
Dublin Core Metadata Element Set (DCMES, ISO 15836:2003, revised 2009). For data exchange purposes,
EN 15744-conformant metadata can be prepared in one of the following ways.
4.2.2 EN 15744 mapped to DCMES
In cases where a party in a metadata exchange is unable to provide or consume EN 15744-conformant
metadata, or such metadata is to be merged with DCMES-based metadata, the element contents may be
transformed to a DCMES-conformant representation using the Dublin Core mapping statements contained in
EN 15744.
A representation transformed according to the DCMES may be encoded in any syntax endorsed by the Dublin
Core Metadata Initiative.
4.2.3 EN 15744 native
Metadata using the EN 15744 element specifications may be encoded in any syntax endorsed by the Dublin
Core Metadata Initiative. Where appropriate, this metadata may be combined with elements from other
standards and specifications, provided that any element not defined in EN 15744 is labelled with a namespace
reference indicating its origin.
4.3 EN 15907 Data exchange using XML
4.3.1 General
The following clauses specify requirements for an XML-based exchange of metadata instances conformant
with EN 15907. Further definitions based on different encoding schemes may be made available in the future.
4.3.2 Wrapper element
A wrapper element is required whenever more than a single instance of a Cinematographic Work element is
to be exchanged as a contiguous data stream. Depending on the exchange scenario, such an element may or
may not be defined by the exchange specification. Where this is not the case, sequences of Cinematographic
Work elements shall be enclosed in an ExchangeSet element.
4.3.3 Description units
Cinematographic Work
Since EN 15907 defines this unit of description as the reference point for any Variant and/or Manifestation, it
shall be used as the top-level element in an XML-based representation of a conformant metadata. This
requirement entails that a work-level identity shall be supplied even in cases where no work-level information
about a Manifestation is available. It is the task of the metadata supplier to provide elementary work-level
identification, independent of whether this information is transitory, preliminary, or persistent.
Variant
Defined as optional in EN 15907, this unit of description may or may not be included depending on one of the
following conventions:
a) All work-level descriptions have a default instance of Variant. In this case, any instance of Manifestation,
even if not more than one is known, shall occur as a child element of a Variant.
b) A Variant is used to distinguish two or more sets of (one or more) Manifestations, and omitted if all
Manifestations are considered to belong to a single set. In the latter case, each instance of Manifestation
will occur as a direct sub-element of the Cinematographic Work, while in the former case each
Manifestation will occur as a direct child element of a Variant instance.
c) A Variant is used to distinguish a particular set of Manifestations from those that are not considered to
belong to any Variant. In this case, instances of Manifestation can occur both as sub-elements of
Cinematographic Work and of one or more instances of Variant.
d) The Variant is never used. In this case, each instance of Manifestation shall occur as a child element of
the Cinematographic Work instance.
It is recommended that a contiguous XML-encoded data stream containing EN 15907-compliant metadata
restricts the use (or non-use) of the Variant to a single convention from the above list. It is further
recommended that parties engaging in an XML-based exchange of EN 15907-compliant metadata agree on
one of the above conventions so as to minimise the risk of misalignment when processing this metadata.
Manifestation
Although not explicitly stated in EN 15907, this unit of description shall be considered mandatory if
compatibility with EN 15744 is required. A Cinematographic Work without a known manifestation, or one that
has never been realised, shall be associated with a Manifestation of an appropriate type (e.g. „unknown“ or
„production aborted“).
Item
Any item-level description shall be represented as a dependent element (i.e. a sub-element in XML) with
respect to a Manifestation. Where an item is the only source for metadata, the EN 15907 data model assumes
that properties such as extent and format are those of the manifestation, i.e. common to all possibly existing
exemplars.
An item may be composed of sections representing a unique combination of cinematographic works. Such
item-level compilations are not in the immediate scope of EN 15907. They may be expressed by associating a
single instance of Item with two or more manifestations of different works by use of a suitable specialisation of
the HasOtherRelationship.
4.3.4 Expressing Relationships
Except for some one-to-many relationships, which can be expressed through XML element nesting, any
relationship expression requires the use of identifiers. An XML encoding of EN 15907-conformant metadata
shall not use the ID/IDREF or KEY/KEYREF types, since these require references to be resolvable within the
...
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