XPO allows you to easily transfer data over the wire in your distributed applications via WCF services using specially developed IDataStore, ICachedDataStore and ISerializableObjectLayer providers. You can choose one for the server application (based on your data store access method) and expose it via a WCF service. Generally, all you have to do is derive your service from a corresponding XPO service class, modify service binding settings and pass the service's URL to your client application.
The following table summarizes the information on classes and interfaces available for use with WCF services.
Data Store Implementation