If the metadata adapter supports working in a disconnected mode (i.e., one in which Connect has not been called), then it should return True for the SupportsDisconnectedMode property. Otherwise it should return False.
Supporting disconnected mode means that the metadata adapter functions correctly (for modification commands) even though the Connect method on the metadata adapter has not been called. Supporting disconnected mode also means that the metadata adapter is able to process the instructions resulting from synchronizing the parsed map schema with the map schema objects generated when Connect is called (covered later in this document).
If a metadata adapter does not support disconnected mode, then Connect will always be called (i.e., the metadata adapter will never be used in a disconnected fashion).