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The Open Digital Rights Language (ODRL) is a Rights Expression Language (REL) developed to express rights, rules, and conditions – including permissions, prohibitions, obligations, and assertions – for interacting with online content. ==ODRL Standards Group== A member of the World Wide Web (W3C) Community and Business Groups, the ODRL Community Group represents an international initiative to define the open standard for expressing policy information over digital content residing on the Open Web Platform (OWP). With the publication of ODRL Version 2.0, the ODRL policy model framework currently supports traditional rights expressions for commercial transactions, open access expressions, and privacy expressions for social media. ODRL was initially created in 2000, to address the burgeoning needs of the DRM-sector when media players were first introduced to the marketplace. Version 1.0 of the ODRL language was quickly adopted by the Open Mobile Alliance (OMA) as their core standard for mobile media content protections and for managing digital objects. To date, ODRL is arguably the largest mobile implementation of a rights language, currently operating on over a billion compatible devices. ODRL was managed by an independent Initiative before becoming a W3C Community Group in 2011. This move has provided long-term stability of the specifications and a transparent governance model. In 2013, two new media sectors adopted ODRL: the eBook publishing and news industries. The International Press and Telecommunication Council (IPTC) news consortium adopted ODRL for the communication of usage policies, primarily in association with the licensed distribution and use of news content in the online news marketplace. In the current virtual goods environment, content assets purchased or permissioned by a consumer are often locked into the same platform where content was initially consumed due to interoperability of rights expressions across platforms. Because ODRL Version 2.0 recognizes it is equally important to state Permissions and Prohibitions in an expression language representing both DRM and non-DRM digital objects, broad adoption of this advanced model can reduce friction across digital devices and enable transparent transactions between machines in accordance with the specified policy language. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ODRL」の詳細全文を読む スポンサード リンク
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