Marshalling or Marshaling is the process of transforming the memory representation of an object to a data format suitable for storage or transmission,[citation needed] and it is typically used when data must be moved between different parts of a computer program or from one program to another. Marshalling is similar to serialization and is used to communicate to remote objects with an object, in this case a serialized object. It simplifies complex communication, using composite objects in order to communicate instead of primitives. The inverse of Marshalling is called unmarshalling (or demarshalling, similar to deserialization).
Source: Marshalling