Together with the classes rca.core.Profile and rca.core.Runtime this package provides support for the rca in-process interface that allows external Java applications to use rca as a kind of library and to launch the rca Runtime from within the application itself. The classes of this package wraps the main actors of the rca platform and allows to interact with them and, in particular, to control their life-cycle. A section of the Programmer's Guide contains a detailed description of the usage of the in-process interface.