FORM_FIELDS

Hai every one...

Hai am very new to SAP CRM i want to know ...

And I have one more doubt regarding FORM_FIELDS in do_handle_event, I knew something about this for we can get which

fields have been changed on the view....and this FORM_FIELDS we will take in a loop so that we can get wch fields have been

changed.....but i dont understand exactly at what requirement this FORM_FIELDS will helpful, what is the requirement for this exactly ....i want to see one scenario