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13 13  {{box cssClass="box_green"}}
14 14  == SDMX Implementation ==
15 15  
16 -International standards like Statistical Data and Metadata eXchange ([[SDMX>>https://sdmx.org/||rel="noopener noreferrer" target="_blank"]]) have provided a robust foundation for metadata exchange in official statistics. However, our experience has revealed significant limitations influencing the achievement of semantic interoperability. SKMS addresses these gaps by integrating SDMX structures into a semantic interpretation environment via the Interoperability Basis platform. The platform supports semantic alignment, enrichment, and publication of data exchange standards using a knowledge management system, modeling tools, namespace control, and persistent URI infrastructure.
16 +International standards like Statistical Data and Metadata eXchange (SDMX) have provided a robust foundation for metadata exchange in official statistics. However, our experience has revealed significant limitations influencing the achievement of semantic interoperability. SKMS addresses these gaps by integrating SDMX structures into a semantic interpretation environment via the Interoperability Basis platform. The platform supports semantic alignment, enrichment, and publication of data exchange standards using a knowledge management system, modeling tools, namespace control, and persistent URI infrastructure.
17 17  {{/box}}
18 18  
19 19  == Linked Data ==
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84 84  
85 85  The Semantic Knowledge Management System relies on a set of well-established [[Semantic Web>>https://www.w3.org/standards/||rel="noopener noreferrer" target="_blank"]] standards and vocabularies:
86 86  
87 -* [[**FOAF (Friend Of A Friend)**>>https://xmlns.com/foaf/spec/||rel="noopener noreferrer" target="_blank"]] – a vocabulary of named properties and classes for describing people and their relationships, built using RDF and OWL.
88 -* [[**vCard (The Electronic Business Card)**>>https://www.w3.org/TR/vcard-rdf/||rel="noopener noreferrer" target="_blank"]] – a data format for representing and exchanging contact information about individuals and organizations (e.g. for phonebooks or email clients).
89 -* [[**OWL (Web Ontology Language)**>>https://www.w3.org/OWL/||rel="noopener noreferrer" target="_blank"]] – a language for defining and linking ontologies, supporting formal descriptions of concepts, properties, and relationships in the [[Semantic Web>>https://www.w3.org/standards/||rel="noopener noreferrer" target="_blank"]].
90 -* [[**Dublin Core™ Metadata Initiative (DCMI)**>>https://www.dublincore.org/specifications/dublin-core/dces/||rel="noopener noreferrer" target="_blank"]] – a standard set of metadata terms used to describe a wide range of resources, including elements, encoding schemes, and syntax guidelines.
91 -* [[**RDF 1.1 Concepts and Abstract Syntax**>>https://www.w3.org/TR/rdf11-concepts/||rel="noopener noreferrer" target="_blank"]] – the foundational knowledge representation model of the [[Semantic Web>>https://www.w3.org/standards/||rel="noopener noreferrer" target="_blank"]], defining how RDF data is structured using triples.
92 -* [[**RDFS (RDF Schema 1.1)**>>https://www.w3.org/TR/rdf-schema/||rel="noopener noreferrer" target="_blank"]] – a vocabulary extension to RDF, providing classes and properties for defining basic ontologies and structuring RDF resources.
93 -* [[**RDF Data Cube Vocabulary**>>https://www.w3.org/TR/vocab-data-cube/||rel="noopener noreferrer" target="_blank"]] – a W3C vocabulary for publishing multidimensional statistical data in RDF, compatible with the SDMX cube model.
94 -* [[**SDMX (Statistical Data and Metadata Exchange)**>>https://sdmx.org/||rel="noopener noreferrer" target="_blank"]] – an international standard for the exchange of statistical data and metadata, supported by key statistical organizations.
95 -* [[**SKOS (Simple Knowledge Organization System)**>>https://www.w3.org/TR/skos-reference/||rel="noopener noreferrer" target="_blank"]] – a W3C standard for representing knowledge organization systems such as thesauri, taxonomies, and classifications.
96 -* [[**SKOS-XL (SKOS eXtension for Labels)**>>https://www.w3.org/TR/skos-reference/skos-xl.html||rel="noopener noreferrer" target="_blank"]] – an extension of SKOS that allows for richer descriptions and relationships between lexical labels.
97 -* [[**XKOS (SKOS extension for statistical classifications)**>>https://rdf-vocabulary.ddialliance.org/xkos.html||rel="noopener noreferrer" target="_blank"]] – a vocabulary extending SKOS for describing statistical classifications and code lists, jointly developed by INSEE and Eurostat.
87 +* **FOAF (Friend Of A Friend)** – a vocabulary of named properties and classes for describing people and their relationships, built using RDF and OWL.
88 +[[url:https://xmlns.com/foaf/spec/||rel="noopener noreferrer" target="_blank"]]
89 +* **vCard (The Electronic Business Card)** – a data format for representing and exchanging contact information about individuals and organizations (e.g. for phonebooks or email clients).
90 +[[https:~~/~~/www.w3.org/TR/vcard-rdf/>>url:https://www.w3.org/TR/vcard-rdf/||rel="noopener noreferrer" target="_blank"]]
91 +* **OWL (Web Ontology Language)** – a language for defining and linking ontologies, supporting formal descriptions of concepts, properties, and relationships in the [[Semantic Web>>https://www.w3.org/standards/||rel="noopener noreferrer" target="_blank"]].
92 +[[https:~~/~~/www.w3.org/OWL/>>url:https://www.w3.org/OWL/||rel="noopener noreferrer" target="_blank"]]
93 +* **Dublin Core™ Metadata Initiative (DCMI)** – a standard set of metadata terms used to describe a wide range of resources, including elements, encoding schemes, and syntax guidelines.
94 +[[https:~~/~~/www.dublincore.org/specifications/dublin-core/dces/>>https://https:www.dublincore.orgspecificationsdublin-coredces||rel="noopener noreferrer" target="_blank"]]
95 +* **RDF 1.1 Concepts and Abstract Syntax** – the foundational knowledge representation model of the [[Semantic Web>>https://www.w3.org/standards/||rel="noopener noreferrer" target="_blank"]], defining how RDF data is structured using triples.
96 +[[https:~~/~~/www.w3.org/TR/rdf11-concepts/>>url:https://www.w3.org/TR/rdf11-concepts/||rel="noopener noreferrer" target="_blank"]]
97 +* **RDFS (RDF Schema 1.1)** – a vocabulary extension to RDF, providing classes and properties for defining basic ontologies and structuring RDF resources.
98 +[[https:~~/~~/www.w3.org/TR/rdf-schema/>>url:https://www.w3.org/TR/rdf-schema/||rel="noopener noreferrer" target="_blank"]]
99 +* **RDF Data Cube Vocabulary** – a W3C vocabulary for publishing multidimensional statistical data in RDF, compatible with the SDMX cube model.
100 +[[https:~~/~~/www.w3.org/TR/vocab-data-cube/>>url:https://www.w3.org/TR/vocab-data-cube/||rel="noopener noreferrer" target="_blank"]]
101 +* **SDMX (Statistical Data and Metadata Exchange)** – an international standard for the exchange of statistical data and metadata, supported by key statistical organizations.
102 +[[https:~~/~~/sdmx.org/>>url:https://sdmx.org/||rel="noopener noreferrer" target="_blank"]]
103 +* **SKOS (Simple Knowledge Organization System)** – a W3C standard for representing knowledge organization systems such as thesauri, taxonomies, and classifications.
104 +[[https:~~/~~/www.w3.org/TR/skos-reference/>>url:https://www.w3.org/TR/skos-reference/||rel="noopener noreferrer" target="_blank"]]
105 +* **SKOS-XL (SKOS eXtension for Labels)** – an extension of SKOS that allows for richer descriptions and relationships between lexical labels.
106 +[[https:~~/~~/www.w3.org/TR/skos-reference/skos-xl.html>>url:https://www.w3.org/TR/skos-reference/skos-xl.html||rel="noopener noreferrer" target="_blank"]]
107 +* **XKOS (SKOS extension for statistical classifications)** – a vocabulary extending SKOS for describing statistical classifications and code lists, jointly developed by INSEE and Eurostat.
108 +[[https:~~/~~/rdf-vocabulary.ddialliance.org/xkos.html>>url:https://rdf-vocabulary.ddialliance.org/xkos.html||rel="noopener noreferrer" target="_blank"]]