Hallo Deb,
Real time example is that when you have component controller and context node.
When you bind this context node to your views and interface then it is called direct context binding.
I think you mean External binding as reverse binding.
ALV is one of the best example using this external Binding.
When you use alv in wendynpro as used components , you do a external binding
DATA node of the ALV is bind to the component context node.
Design time alv is build with a idea that it does not have to know who is going to be its data provider. That is the strength of the external binding.
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