(Solved): Chapter 7 Exercise Questions - Q 7.3. Using the UML graphical notation for object classes, design t ...

Chapter 7 Exercise Questions - Q 7.3. Using the UML graphical notation for object classes, design the following object classes, identifying attributes and operations. Use your own experience to decide on the attributes and operations that should be associated with these objects (5 points). - a messaging system on a mobile (cell) phone or tablet - a printer for a personal computer - a personal music system