Device Description Repository: Difference between revisions

Revision as of 00:20, 6 November 2011

Revision as of 08:40, 6 November 2011

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* '''Relevance of data'''. The [[W3C Device Description Working Group|DDWG]] includes content adaptation specialists who have identified a core set of device properties that are useful for adaptation. Other groups are likely to refine this knowledge. Keeping the information up-to-date will also be a challenge.

* '''Ease of use'''. The interfaces should map easily to a variety of programming languages, and be as simple to use as other popular adaptation technologies (e.g. [[Wurfl|WURFL]] or [[OpenDDR]]).

* '''Ease of deployment'''. Existing technologies like [[Domain name system|DNS]] show that global repositories can be deployed on a real-time basis. The W3C is unlikely to specify a particular server architecture. The DDWG has already identified a [[Web services|Web Service]] interface (e.g. [[SOAP]]) as a minimum requirement, and implementations are free to create the logic any way they wish (e.g. [[RDBMS|relational database]] queries) so long as the formal interface is supported.

* '''Assured interoperability'''. The varied nature of the Web requires that the repository interfaces and data formats can be supported by the largest number of Web technologies. Formal descriptions of [[API]]s and Data Vocabularies will be necessary.

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==Implementations==

Open and commercial implementations of the DDR Simple API are available. Some of these formed part of the W3C's implementation report<ref>{{cite web|title=DDR Simple API Implementation Report|url=http://www.w3.org/2005/MWI/DDWG/drafts/api/test-report.html|date=June 19, 2008|publisher=W3C (MIT, ERCIM, Keio)|accessdate=2008-12-12}}</ref> prior to the API becoming a Web standard. The W3C's Mobile Web Initiative also tracks implementations of relevant mobile standards and other developer resources, including the DDR Simple API.

On the 4th of November 2011 during Mobile2Days event<ref>{{cite web|title=Java2DaysMobile2Days Agenda 2011|url=http://2011.java2days.com/wp-content/uploads/2011/11/Agenda-2011.pdf|date=November 4, 2011|publisher=Java2Days|accessdate=2011-11-04}}</ref> the [[OpenDDR]] project was launched. It is a open source project aiming to be the reference community implementation of W3C's DDR Simple API and the reference community repository.

==Notes==

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*[[Wurfl|WURFL]]

*[http://forge.morfeo-project.org/frs/download.php/425/DevInfo-Simple-1.0.tar.gz MyMobileWeb DDR Simple API Implementation]

*[[OpenDDR]]

==External links==

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*[http://www.openmobilealliance.org/ Open Mobile Alliance]

*[http://www.w3.org W3C]

[[Category:World Wide Web Consortium standards]]

*[http://www.openddr.org OpenDDR]