Question

Imagine that yau have collected the follouwing etd oe cequirements for an ATM System but ong neve resources to 3ehsfy two, posablg three of thase. Surtably prortite the requrements by merking them as mandaty Quiz Com),ice to have (N), r superfluous (S). (]The system shall checy the PIN of the ATM card before allooing the auttoner to perform an aperston [] The syeen ahall erforn an edditondl brometne denfcetran of the Qulfoner's idevitty before ib allotas the Quttomer bo parfam an qpeahan [The actem shal difacs austomert to wthdrraw eash using an Amard t The sustem shall dlicuo auetomert to deposit money usng an fiTM card LJ The system shal dilao cuetomers to dhange the AN of an Am Card

Answer 1

IDEA:

Since,we have resources to satisfy only two requirements and possibly three out of 5,we need to mark 2 as M, one as N and two as S where M,N,S definitions are given in the question.

SOLUTION:

M,S,M,S N

The two main operations for an ATM machine to possess are verification of the customer and providing money to him.Verification by PIN number is best because many times,money can be with drawn by their family members it is cannot be possible for them to possess bio metric information.

So,verification by PIN and with drawing money is mandatory requirements.And we can say bio metric identification is Superfluous.

Out of the rest two,since ATM is operated by pin number,allowing the users to change the pin number can be a good one.So,it is N and deposit money is S.