data binding diagram and its explanation

•The source object that contains the data that flows between the source and target. The source can be any CLR object.
•The target UI property that displays and possibly allows user changes to the data. The target can be any DependencyProperty of a FrameworkElement.
•The direction of the data flow. The direction is specified by setting the Mode property on the Binding object.
•The optional value converter that applies to the data as it is passed. The value converter is a class that implements IValueConverter.