Comparison of object–relational mapping software

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This table shows some of the major ORM software products currently available.

Orm Platform Availability Licence Version Enterprise Licence Cost
DataObjects.net [1] .Net 3.5 Commercial & Open Source[1] 4.2 (2010-03-02[2]) $1995[3]
DevExpress XPO - eXpress Persistent Objects .Net 4.0 Commercial Q1'10 (2010-05-19) $79–$199[4]
Hibernate Java Virtual Machine Open Source GNU Lesser General Public License 3.5.5 Final / August 18, 2010
iBATIS Cross-platform Open Source Apache License 2.0
Microsoft ADO.NET Entity Framework .Net 4.0 Part of .Net 4.0 v4.0 (2010-04-12)
nHibernate[2] .Net 2.0 Open Source GNU Library or GNU Lesser General Public License 2.1.2.GA (2009-11-22[5])
Telerik OpenAccess .Net 4.0 Commercial Q1'10 (2010-03-10) $299–$599[6]
TopLink Java Virtual Machine Commercial Oracle Licence 10g

References