JIN, we take it a step further. Our service classes have a pure REST API:

1 - Get (fully qualified entity get)

2 - List (entity get w/ query parameters)

3 - Post (add new entity)

4 - Put (replace an entity's values)

5 - Delete (fully qualified entity delete)

6 - Validate (validate entity data, no I/O)

7 - Info (get entity class details)

8 - Post (execute an application command)

You'd be amazed at how much confusion (and unnecessary documentation) that eliminates.