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| ====== Graph Semantics ====== | ====== Graph Semantics ====== |
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| [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]] | [[dido:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]] |
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| ===== Discussion ===== | ===== Discussion ===== |
| A graph represents information by connecting things through relationships. In semantic graph work, the meaning comes from the governed identifiers, relationship names, vocabulary definitions, constraints, and traceability that give the graph structure its intended interpretation. | A graph represents information by connecting things through relationships. In semantic graph work, the meaning comes from the governed identifiers, relationship names, vocabulary definitions, constraints, and traceability that give the graph structure its intended interpretation. |
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| [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:r:rdf|RDF]] provides a graph-based framework for representing information. An [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:r:rdf_graph|RDF graph]] contains [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:r:rdf_triple|RDF triples]]. Each RDF triple expresses one subject-predicate-object statement. | [[dido:99_annexes:annex-b-terms-and-definitions:r:rdf|RDF]] provides a graph-based framework for representing information. An [[dido:99_annexes:annex-b-terms-and-definitions:r:rdf_graph|RDF graph]] contains [[dido:99_annexes:annex-b-terms-and-definitions:r:rdf_triple|RDF triples]]. Each RDF triple expresses one subject-predicate-object statement. |
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| Graph semantics differs from graph structure. Graph structure identifies connected nodes and relationships. Graph semantics explains what those nodes and relationships mean within a defined domain. | Graph semantics differs from graph structure. Graph structure identifies connected nodes and relationships. Graph semantics explains what those nodes and relationships mean within a defined domain. |
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| Graph semantics also differs from [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:o:ontology|ontology]] and [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:o:owl|OWL]]. An ontology captures selected semantic commitments for a domain. OWL provides an [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:o:ontology_language|ontology language]] for the Semantic Web. A graph expresses semantic content when the graph preserves traceability to governed vocabulary, conceptual meaning, ontology content, rules, schemas, or other authoritative semantic sources. | Graph semantics also differs from [[dido:99_annexes:annex-b-terms-and-definitions:o:ontology|ontology]] and [[dido:99_annexes:annex-b-terms-and-definitions:o:owl|OWL]]. An ontology captures selected semantic commitments for a domain. OWL provides an [[dido:99_annexes:annex-b-terms-and-definitions:o:ontology_language|ontology language]] for the Semantic Web. A graph expresses semantic content when the graph preserves traceability to governed vocabulary, conceptual meaning, ontology content, rules, schemas, or other authoritative semantic sources. |
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| Graph semantic content includes: | Graph semantic content includes: |
| * Traceability to domain meaning | * Traceability to domain meaning |
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| A governed architecture preserves [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:t:traceability|traceability]] from graph semantics to the [[fxdemo:99_part_annexes:annex-b-terms-and-definitions:c:conceptual_model|conceptual model]], vocabulary, ontology, schema, rule set, or other semantic source that establishes the intended meaning. | A governed architecture preserves [[dido:99_annexes:annex-b-terms-and-definitions:t:traceability|traceability]] from graph semantics to the [[dido:99_annexes:annex-b-terms-and-definitions:c:conceptual_model|conceptual model]], vocabulary, ontology, schema, rule set, or other semantic source that establishes the intended meaning. |
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| ===== Definition ===== | ===== Definition ===== |
| ===== Source ===== | ===== Source ===== |
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| DIDO Solutions usage, informed by RDF, graph data modelling, semantic graph practice, ontology practice, and semantic traceability practice. | DIDO Solutions usage, informed by RDF, graph data modeling, semantic graph practice, ontology practice, and semantic traceability practice. |
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| ===== Note ===== | ===== Note ===== |