Sue Conger's The New Software Engineering: "Object-Oriented Terms"

Read the "Definition of Object-Oriented Terms" section in Chapter 11 (pages 461–463). This section will cover basic object-oriented terms including classes and objects, abstract data types (ADT) and encapsulation, whole or part and generalization or specification classes, inheritance and polymorphism, and messages.

Click The New Software Engineering.pdf link to view the file.