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abstraction > data abstraction

data abstraction
subject			fact

data abstraction	groups the pieces of data that describe some entity, so that programmers can manipulate that data as a unit
	has advantages your programs become easier to read your programs become easier to reuse you can easily augment what a class provides you can easily improve the way that data are stored
	helps a programmer to cope with the complexity of data
	is a subtopic of Object Oriented Programming Concepts
	is facilitated by the use of accessor methods
	is a kind of abstraction