OBJECT-ORIENTED METHODS (Principles and Practices), New Edition is a comprehensive, modern and resourceful textbook for both undergraduate and graduate students. This textbook introduces the student to the basic concepts of object-oriented analysis and design. Use case modeling, class modeling and state modeling using common notations are covered. Completion of several exercises and a group project are required. The book also demonstrated the use of the concepts of abstraction, encapsulation, inheritance and aggregation in software development, the role of use cases in software development, the role of polymorphism and dynamic binding, determine suitable objects/classes and their relationships and draw a class diagram of a given problem, Identify states and state transitions and draw a state diagram for a given problem, construct sequence and collaboration diagrams for given use cases, assemble an activity diagram for a given OO problem solution, facilitate collaboratively within team environment a project with object oriented method goals and structure