Multimedia Software Engineering

3. Object-Oriented Development
and Component-Based software

Objects are good candidates for components, provided their granularity is sufficient.

Objects	Components
An object is a unit of instantiation; it has a unique identity	A component is a unit of independt deployment
An object has state; this state can be persistent state.	A component has no persistent state.
An object encapsulates its state and behaviour	A component is a unit of third-party composition
Inheritance	Low coupling is desired