plaindb is a plain text database package. It comprises the file format, and a
set of modules on Perl, Tcl and python to access the databases, plus a basic
shell interface.
Higher level interfaces are also included for local (GUI) and web
access.
OpenRMI defines a messaging interface. This interface is applied in a one to many fashion, using a controller with many nodes. The nodes connect via RMI to the controller and are assigned work via the same interface.