into a MACH message and sent to the server, which decodes and dispatches to the real object.&nbsp; There will be many times when this policy is not desirable, such as when the object is small and won't change over time, when a complete copy of an object is desired for manipulation, or when a container object is passed.&nbsp; In these cases, one wants to pass the implementation of an object in some manner and instantiate a copy on the client side.&nbsp; We describe this latter process as an Object passing it