Black Boxes

• A black box magically does its thing
• Hides its inner workings
• Encapsulation: the hiding of unimportant details
• What is the right concept for each particular black box?
• Concepts are discovered through abstraction
• Abstraction: taking away inessential features, until only the essence of the concept remains
• In object-oriented programming the black boxes from which a program is manufactured are called objects