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Mulgara (software)
Mulgara is a triplestore and fork of the original Kowari project. It is Open Source, scalable, and transaction-safe.〔(Mulgara | Semantic Store - Frequently Asked Questions )〕 Mulgara instances can be queried via the iTQL query language and the SPARQL query language.〔(Welcome to the new Mulgara project! )〕
==History==
Kowari was first made available for download in beta form on the 26th of October 2003.〔(Kowari Developer Beta Release )〕 In April 2004,〔(Massive Scalability for RDF Storage and Analysis, David Wood, Tom Adams, Andrew Newman )〕 (Tucana Technologies Inc ) demonstrated the Tucana Knowledge Server (TKS), a proprietary RDF database relying on Kowari as the basis. A steady number of releases occurred throughout 2004, including (version 1.0.5 ) and (1.1 pre-release ). The development of TKS stalled due to difficulties with funding at the end of 2004,〔(Changes at Tucana Technologies )〕 while the development of Kowari continued on.〔(Kowari Developers Archive )〕
In September 2005, Tucana was bought by Northrop Grumman.〔(Northrop Grumman Acquires Proprietary Software from Tucana Technologies )〕 In January 2006, Northrop Grumman threatened a Kowari developer with legal action if he released any new version of Kowari.〔(Kowari-developers In hope of resolution. )〕 As a consequence, Kowari was forked in July 2006. It was renamed to Mulgara as Northrop Grumman owned the Kowari trademark. All development on Kowari has stopped〔(SourceForge.net: Kowari )〕 and the community moved to Mulgara. The legal cloud surrounding Kowari was eventually resolved,〔(Kowari Legal Status )〕 one of the outcomes was the adoption of the Open Software License (3.0 ). Since 2008 all new code is being licensed with the Apache 2.0 License.〔
Since 2006 Mulgara 1.0.0 has been released, significant changes to the transaction architecture was made to support JTA, SPARQL support, a Jena API, and integration with Sesame has been added. As of January 10, 2012 the latest version is 2.1.13.〔(Mulgara News )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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