Node

Hi Experts,

I am new to webdynpro and i hope to get my basics right before i start working on it . Could someone plz answer the below queries:

1> What is a Node, Attribute and Element.

2> How does the data flow occur between Component Controller and other View Controllers.

3> What is the hierarchy of methods executed in a view i.e wddoinit,modifyview,afteraction etc.

Thanks In Advance,

Chaitanya.