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Web 3.0

Web 3.0 is a term that has been coined to describe the evolution of Web usage and interaction that includes transforming the Web into a database, a move towards making content accessible by multiple non-browser applications, the leveraging of artificial intelligence technologies and the Semantic web and three dimensional interaction and collaboration.

Definitions and roadmap

There is considerable debate in both the IT industry and blogging communities about whether Web 3.0 is a valid entity, and what it actually is. It is suggested by many that the term is just another buzzword, while the contrary view is that it as an evolutionary path for the Web as depicted by the following phases:

- Web 1.0: Web Browser driven "Interactive Web of Hypertext" pages where presentation, logic, and data are indistinguishable
 

- Web 2.0: Web Services based API driven "Web of Services" that separate "Application Logic" from the intermingled presentation, logic, and data pages of Web 1.0. Examples of Web 2.0 application profiles include: blogs, wikis, the use of Ajax to improve web application interaction richness, and mashups. Web 2.0 does not explicitly expose Data Models.
 

- Web 3.0: The final step in the decomposition of monolithic Web Pages into discrete components that include the Presentation (HTML and (X)HTML), Logic (Web Services APIs), and Data (Data Models) trinity, it transitions Web containment from Web Pages to Web Data. Its emergence simplifies the development and deployment of Data Model driven composite applications that provide easy, transparent and organized access to “the world’s data, information, and knowledge”

Das semantische Web

Das semantische Web (engl. Semantic Web) ist eine Erweiterung des World Wide Web (WWW) um maschinenlesbare Daten, die die Semantik der Inhalte formal festlegen. Das Konzept beruht auf einem Vorschlag von WWW-Begründer Tim Berners-Lee.

Informationen sollen zusätzlich zu der für Menschen lesbaren Form auch formal, in einer für Maschinen verarbeitbaren Form repräsentiert werden, damit Programme darauf operieren können, so dass Anfragen aufgrund ihres Bedeutungsinhalts anstelle ihrer Schreibweise bearbeitet werden können.

Zwar verweist die wortwörtliche Übersetzung „Semantisches Netz“ auf eine Verwandtschaft mit der Theorie der semantischen Netze (semantic networks), es handelt sich jedoch um eine konkrete Spezifikation eines lose verteilten semantischen Netzes.
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Semantic web

The semantic web is an evolving extension of the World Wide Web in which web content can be expressed not only in natural language, but also in a form that can be understood, interpreted and used by software agents, thus permitting them to find, share and integrate information more easily.[1] It derives from W3C director Tim Berners-Lee's vision of the Web as a universal medium for data, information, and knowledge exchange.

At its core, the semantic web comprises a philosophy,[2] a set of design principles,[3] collaborative working groups, and a variety of enabling technologies. Some elements of the semantic web are expressed as prospective future possibilities that have yet to be implemented or realized.[4] Other elements of the semantic web are expressed in formal specifications.[5] Some of these include Resource Description Framework (RDF), a variety of data interchange formats (e.g RDF/XML, N3, Turtle, N-Triples), and notations such as RDF Schema (RDFS) and the Web Ontology Language (OWL). All of which are intended to formally describe concepts, terms, and relationships within a given knowledge domain.
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