DML(Add, Modify, Delete) operations on EBS Forms

As we know most of Ebusiness forms are typically based on a data base view.   Oracle does not allow insert, update and delete on database view.

However, EBS forms, despite of based on data base views, they do allow Insert, Update and Delete operations.  How is that?

I need to develop a custom EBS form based on a view and need to achieve this functionality.

Is there any standard development steps or rules to develop forms in such a way that it allows DML operations on a view?

Please advise how to achieve this.

Darsh