RIAServices.Server provides the System.ServiceModel.DomainServices.Hosting and System.ServiceModel.DomainServices.Server assemblies in place of the GAC references, making bin-deployment easier.
The web.config.transform adds the necessary configSections, HTTP modules, and system.serviceModel...
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OpenRiaServices.Server provides the core OpenRiaServices.Server assembly.
You also need the hosting assemblies which can be acquired using OpenRiaServices.Hosting.WCF
RIAServices.EntityFramework provides the DbDomainService<T> class which can be used to create Domain Service classes for use with a DbContext from the EntityFramework package.
This package supports versions of EntityFramework starting with EF 4.1, including EntityFramework 5.0.0.
OpenRiaServices.EntityFramework provides the DbDomainService and LinqToEntities classes which can be used to create Domain Service classes for use with a DbContext or ObjectContext from the EntityFramework package.
This package supports versions of EntityFramework starting with EF 6.0.1
RIAServices.Silverlight provides the System.ServiceModel.DomainServices.Client and System.ServiceModel.DomainServices.Client.Web assemblies for your Silverlight projects.
This package can be used instead of adding references from the WCF RIA Services MSI installation.
RIAServicesContrib.EntityFramework provides the DbDomainService<T> class which can be used to create Domain Service classes for use with a DbContext from the EntityFramework package.
This package supports versions of EntityFramework starting with EF 6.0.1.
RIAServices.EF4 provides the LinqToEntitiesDomainService<T> class which can be used to create Domain Service classes for use with an ObjectContext from Entity Framework 4.0.
This package can be used in place of a GAC reference to the System.ServiceModel.DomainServices.EntityFramework assembly,...
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RIAServices.Endpoints provides the Microsoft.ServiceModel.DomainServices.Hosting assembly, which serves the SOAP and JSON endpoints for Domain Services.
The necessary web.config entries are added with this package as well.
OpenRiaServices CodeGen provides the MsBuild Tasks to generate the client proxy.
If the signed T4 template is used on the server then you need to use OpenRiaServices.Signed.Client.CodeGen instead.
OpenRiaServices.T4 provides the CSharpClientCodeGenerator class, as well as many supporting classes, which can be used to override the existing code generation pattern for RIA Services.
RIAServices.T4 provides the CSharpClientCodeGenerator class, as well as many supporting classes, which can be used to override the existing code generation pattern for RIA Services.
OpenRiaServices.Signed.Client.Core provides the OpenRiaServices.DomainServices.Client and OpenRiaServices.DomainServices.Client.Web assemblies for your client projects.