NO The number of knowledge source that is a inner
mark
NAME External mark of knowledge source
DESCRIPTION The description of function of knowledge source
TRIGGER The condition of trigger
PRE-CONDITION The pre-condition of knowledge source that
specifies status of blackboard storage area that
knowledge source can apply
PRIORITY The priority of knowledge source corresponded
COND-VAR Condition variable that indicates variable name
used by trigger and pre-condition
ACTION Operation of knowledge sourc