Overview of Systems Development
• Object-oriented development
_More iterative and incremental than traditional structured development
.Systems analysis: Interactions between system and users analyzed to identify objects
.Design phase: Describes how objects will behave and interact; grouped into classes, subclasses and hierarchies
.Implementation: Some classes may be reused from existing library of classes, others created or inherited
_Because objects reusable, object-oriented development can potentially reduce time and cost of development