Attributes of JavaBeans
Introspection: enables a builder tool to analyze how a Bean works
Customization: enables a developer to use an app builder tool to customize the appearance and behavior of a Bean
Events: enables Beans to communicate and connect together
Properties: enable developers to customize and program with Beans
Persistence: enables developers to customize Beans in an app builder, and then retrieve those Beans, with customized features intact, for future use