Object Spaces

"Microsoft Object Spaces is designed to work on all .NET platforms. All .NET platforms - desktop, server, personal, embedded, and card - can use this API to access data.

The ObjectSpaces architecture lets you expose data as objects and lists of objects rather than as tables, columns, rows, or XML elements.

Objects defined within the ObjectSpaces architecture are known as persistent objects.

Once you've defined a persistent object, you can use an ObjectSpace to create instances of the object and to persist the object data to a data store, retrieve and persist objects back to the data store, as well as delete instances of the object from the data store." [link]