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Wikidata aims to create a free knowledge base about the world that can be read and edited by humans and machines alike. It will provide data in all the languages of the Wikimedia projects, and allow for the central access to data in a similar vein as Wikimedia Commons does for multimedia files. Wikidata is currently in development.

Wikidata is a project to create a free knowledge base about the world that can be read and edited by humans and machines alike. It will provide data in all the languages of the Wikimedia projects, and allow for central access to the data in a way similar to what Wikimedia Commons does for multimedia files.

Category:Semantic Web From Wikimedia Commons, the free media repository Jump to: navigation, search The semantic Web is an evolving extension of the World Wide Web in which the semantics of information and services on the web is defined, making it possible for the web to understand and satisfy the requests of people and machines to use the web content.

"Wikidata is a collaboratively edited knowledge base hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia can use,[4][5] and anyone else, under a public domain license. The used data model is the Resource Description Framework. Wikidata is powered by the software Wikibase.[6]"

Wikidata is a proposed wiki-like database for various types of content. This project as proposed here requires significant changes to the software (or possibly completely new software) but has the potential to centrally store and manage data from all Wikimedia projects, and to radically expand the range of content that can be built using wiki principles.

MediaWiki is the best known Wiki engine. it is used for Wikipedia and many other projects inside and outside of the Wikimedia Foundation. Over time MediaWiki has grown in functionality and at the same time it became hard to use. This has been recognised and the Usability Initiative is developing much needed improvements to make MediaWiki more usable. Google Wave is a brave new attempt to bring new functionality to well established categories of applications like e-mail, text messaging, wiki and it does it by integrating the functionalities of all of them in a compelling new technology framework. Key elements are the ability to edit in real time with multiple people, an innovative way of showing the history of a wavelet and all this in a WYSIWYG environment.

Wikicat is the bibliographic catalog used by the Wikicite and WikiTextrose projects. It will be implemented as a Wikidata dataset using a datamodel design based upon IFLA's Functional Requirements for Bibliographic Records: final report (FRBR) [1], the various ISBD standards, the Library of Congress's MARC 21 specification, the Anglo-American Cataloguing Rules' The Logical Structure of the Anglo-American Cataloguing Rules and Resource Description and Access (RDA), and the International Committee for Documentation (CIDOC)'s Conceptual Reference Model (CRM)[2]. The history and inter-relation of these various cataloging standards is described in RDA presentations.

"Semantic MediaWiki (SMW) is a free, open-source extension to MediaWiki - the wiki software that powers Wikipedia - that lets you store and query data within the wiki's pages. Semantic MediaWiki is also a full-fledged framework, in conjunction with many spinoff extensions, that can turn a wiki into a powerful and flexible knowledge management system. All data created within SMW can easily be published via the Semantic Web, allowing other systems to use this data seamlessly."

DBpedia is a great and active project dealing with structured data and Wikipedia. Whereas on the first glance DBpedia and Wikidata may look like they have a lot of overlap, they actually do not: they fulfill very different tasks, and there is a small overlap where we need to figure out together how to best co-evolve.

"Wikibase is the software that enables MediaWiki to store structured data or access data that is stored in a structured data repository. Wikibase basically consists of two MediaWiki extensions, Wikibase Repository and Wikibase Client, that can be enabled individually or together for a certain MediaWiki installation to turn it into a structured data repository, a client of a structured data repository or both."

"WikiApiary collects, displays and analyzes information about MediaWiki websites. Once a website is registered with WikiApiary a suite of bots will start collecting information about the versions of software being used, the amount of editing activity on the site as well as the use of Semantic MediaWiki."