| scope | object properties |
|---|---|
| how | the source object dispatch "propertyChange" event and the listener copy the value from the source property to destination property |
| implement 1 | use bindable property in curly brace expression |
| implement 2 | use <mx:Binding> tag to bind a bindable source to some other property(some or other object) |
| implement 3 | runtime binding using BindingUtils |