isa rule concept from the Object Oriented Software Engineering knowledge base

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isa rule

subject fact

isa rule is a subtopic of 2.5 - Organizing Classes Into Inheritance Hierarchies 2001-08-30 14:56:04.0
is an instance of rule
states that class A can only be a valid subclass of class B if it makes sense, in English, to say, "an A is a B"

isa rule	is a subtopic of 2.5 - Organizing Classes Into Inheritance Hierarchies
	is an instance of rule
	states that class A can only be a valid subclass of class B if it makes sense, in English, to say, "an A is a B"