AQA A2 Computing 1.1 Information Hiding and Abstraction

Question 1

Interface

Answer 1

A boundary between the implementation of a system and the world that uses it. It provides an abstraction of the entity

Question 2

Abstraction

Answer 2

Representation that is arrived at by removing unnecessary details.

Question 3

Information Hiding

Answer 3

The practice of dividing a system into many smaller parts, with interfaces that hide design decisions. This allows use of the object without knowledge of it’s inner workings.