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{{Short description|Java library}}{{distinguish|text=the [[CANopen]] protocol of the [[CANopen#Service_Data_Object_(SDO)_protocol|same name]]}}
'''Service Data Objects''' is a technology that allows [[heterogeneous]] data to be accessed in a uniform way. The SDO specification was originally developed in 2004 as a joint collaboration between [[Oracle Corporation|Oracle]] ([[BEA Systems|BEA]]) and [[IBM]] and approved by the [[Java Community Process]] in [http://www.jcp.org/en/jsr/detail?id=235 JSR 235]. Version 2.0 of the specification was introduced in November 2005 as a key part of the [[Service component architecture | Service Component Architecture]].
==Relation to other technologies==
Originally, the technology was known as '''Web Data Objects''', or WDO, and was shipped in [[IBM WebSphere Application Server]] 5.1 and [[IBM WebSphere Studio Application Developer]] 5.1.2.<ref>{{Cite web |title=Introduction to Service Data Objects |website=[[IBM]] |url=http://www.ibm.com/developerworks/java/library/j-sdo/
==Design==
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==Developers==
The specification is now being developed by [[IBM]], [[Rogue Wave (company)|Rogue Wave]], [[Oracle Corporation|Oracle]], [[SAP AG|SAP]], [[Siebel]], [[Sybase]], [[Xcalia]], [[Software AG]] within the [[OASIS (organization)|OASIS]] Member Section Open CSA<ref>[http://www.oasis-opencsa.org/ Activities and announcements | OASIS Open CSA<!-- Bot generated title -->]</ref> since April 2007. Collaborative work and materials remain on the collaboration platform of Open SOA,<ref>[http://www.osoa.org Home
==Implementations==
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* The Eclipse Persistence Services Project ([[EclipseLink]])
* The [[Apache Tuscany]] project for Java and C++
* The fcl-sdo library included with [[FreePascal]]
==References==
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