THIS IS A TYPE OF TECHNIQUES FOR TESTING,HERE WE WILL HAVE

SOME BOUNDARY VALUES LIKE BETWEEN 200-3000.

IN THIS CASE WE GO FOR BVA TESTING

MOST OF THE DEVELOPERS MAY WRITE THE CODE LIKE

(IFAMT>100) AND (IF(AMT<3000) SO IT MEANS IF WE ENTER THE

VALUE 100 IT WILL NOT EXCEPT THE VALUE 100 SO WE TEST THIS

TYPE USING BVA