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routine call coupling
subject			fact

routine call coupling	can be reduced by reducing the total number of routines that a particular class or package calls: If you use a sequence of two or more methods to compute something, and this sequence is used in more than one place, then you can reduce routine call coupling by writing a single routine that encapsulates the sequence
	has definition A form of coupling in which one routine calls another
	is always present in an object oriented system
	is a subtopic of 9.2 - Principles Leading to Good Design
	is a kind of coupling
coupling	implies that if you want to reuse one component, you will also have to import all the ones with which it is coupled