Notation3
In this article we will explore in detail Notation3, a topic that has aroused the interest of various sectors and that has generated a wide debate in today's society. Notation3 has significantly impacted various aspects of our daily lives, and its influence has become increasingly evident in recent years. Through a comprehensive analysis, we will examine the many facets of Notation3, from its origins and history to its implications in today's world. Additionally, we will examine how Notation3 has evolved over time and how it has affected different people and communities around the world. This topic is of great relevance today, so it is essential to understand its ramifications and challenges in order to address it effectively.
| Filename extension |
.n3 |
|---|---|
| Internet media type |
text/n3;charset=utf-8 |
| Developed by | Tim Berners-Lee |
| Type of format | semantic web |
| Container for | RDF data |
| Standard | n3 |
| Website | www |
Notation3, or N3 as it is more commonly known, is a shorthand non-XML serialization of Resource Description Framework models, designed with human-readability in mind: N3 is much more compact and readable than XML RDF notation. The format is being developed by Tim Berners-Lee and others from the Semantic Web community. A formalization of the logic underlying N3 was published by Berners-Lee and others in 2008.
N3 has several features that go beyond a serialization for RDF models, such as support for RDF-based rules. Turtle is a simplified, RDF-only subset of N3.
Examples
The following is an RDF model in standard XML notation:
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc="http://purl.org/dc/elements/1.1/">
<rdf:Description rdf:about="https://en.wikipedia.orghttps://wiki386.com/en/Tony_Benn">
<dc:title>Tony Benn</dc:title>
<dc:publisher>Wikipedia</dc:publisher>
</rdf:Description>
</rdf:RDF>
may be written in Notation3 like this:
@prefix dc: <http://purl.org/dc/elements/1.1/>.
<https://en.wikipedia.orghttps://wiki386.com/en/Tony_Benn>
dc:title "Tony Benn";
dc:publisher "Wikipedia".
This N3 code above would also be in valid Turtle syntax.
Comparison of Notation3, Turtle, and N-Triples
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| Feature | Notation3 | Turtle | N-Triples | |
|---|---|---|---|---|
| Character encoding | UTF-8 | ASCII | ||
| Directives | @base |
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@forAll |
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@forSome |
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@keywords |
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@prefix |
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| Lists | ||||
() (DAML lists) |
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{ … } (statement lists) |
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| Literals | true / false(Boolean) |
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xsd:decimal (decimal arbitrary length) |
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xsd:double (decimal double) |
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xsd:integer (decimal integer) |
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| Syntactic sugar | RDF paths | |
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| QNames | |
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a/@a (equiv. to rdf:type) |
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=> (x implies y) |
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<= (y implies x) |
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= (x is equivalent to y) |
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, (repeat object in list) |
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; (repeat subject/verb in list) |
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See also
External links
- Notation 3 W3C Submission
- Notation 3 Outline on W3C Design Issues by Tim Berners-Lee
- Notation 3 Primer: Getting into RDF & Semantic Web using N3
- A Rough Guide to Notation3
- RDF for "Little Languages"
- An editing mode of N3 for Emacs
- An editing mode of N3 for vim
- An editing mode of N3 for textmate
- An editing mode of N3 for gedit
- EulerGUI, an IDE centered on N3 editor with translation from RDF, with validation, prefix management, uploading of resources, graph view, table view, etc.
References
- ^ Berners-Lee, T. I. M.; Connolly, D. A. N.; Kagal, L.; Scharf, Y.; Hendler, J. I. M. (2008). "N3Logic: A logical framework for the World Wide Web". Theory and Practice of Logic Programming. 8 (3). arXiv:0711.1533. doi:10.1017/S1471068407003213.