Difference between revisions of "Semantics"
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* Based on the obsolete idea that all of language can be divided into [[Syntax]] (order) and [[Semantics]] (meaning). | * Based on the obsolete idea that all of language can be divided into [[Syntax]] (order) and [[Semantics]] (meaning). | ||
| − | * Some data elements have meaning that is independent of the places where they are used. These cases are handled well with a [[Data Dictionary]] | + | * Some data elements have meaning that is independent of the places where they are used. These cases are handled well with a [[Data Dictionary]]. |
* For data elements that are context-dependent, the meaning cannot be known without reference to the context. These cases need a richer model. | * For data elements that are context-dependent, the meaning cannot be known without reference to the context. These cases need a richer model. | ||
Revision as of 08:46, 24 April 2022
Full Title or Meme
When an Entity can determine the "significance" of words in sentences.[1]
Context
- Based on the obsolete idea that all of language can be divided into Syntax (order) and Semantics (meaning).
- Some data elements have meaning that is independent of the places where they are used. These cases are handled well with a Data Dictionary.
- For data elements that are context-dependent, the meaning cannot be known without reference to the context. These cases need a richer model.
Semantic Models
- Semantics in data processing goes back to the 1980's when EDI and XML structures were being defined.
- Data dictionaries appeared in the databases with the EAR or Entity Attribute Relational models used with languages like SQL.
- The Semantic Web can be dated to a paper by Tim Berners-Lee's paper[2] in 2001 and the publication of the OWL language in 2004.[3]
References
- ↑ Webster's Third International Dictionary, Etymology of Semantics
- ↑ Berners-Lee +2, The Semantic Web Scientific American (2001-05-17) https://www.scientificamerican.com/article/the-semantic-web/
- ↑ W3C, OWL Web Ontology Language Overview (2004-02-10) http://www.w3.org/TR/owl-features/
