CHAIMS Primitives
SETUP: set up the connection to a megamodule
SET-, GETATTRIBUTES: set global parameters in a megamodule
ESTIMATE: get estimate of execution time for optimization
Invocation and result gathering:
INVOKE: start a specific method
EXAMINE: test status of an invoked method
EXTRACT: extract results from an invoked method
TERMINATE: terminate a method invocation or a connection to a megamodule
WHILE, IF GETPARAM: get default parameters