It is possible to develope own beans for eva/3 Forms and Reports and adapt the functionality of the apllication to be developed to teh own needs.
A bean can be a data containing unit, or a visible user interface control. These can be inserted in forms and reports.
After the Bean classes are created, the beans can be integrated in eva/3 by a Bean schema.
So beans can be used in Forms and Reports and can be called by their names in the running application.
In the customer prortal of optadat@.com, there are examples with source code, in the section Goodies.