Banking Application,Chip and PIN,Library system,Expert system

Banking Application

ATM (Automated teller machine)  

Can stay 24hours non-stops

No need salary just electricity

Cards hold data such as money and pins

Contact is made with bank computer

There is a choice given from the ATM machine such as:

ATM pin

Top up mobile

See balance 

Taking money

After a people choose one of the option they must confirm it and then the computer will access the personal account to check the balance,And then the computer will check again the limit of the money that will be taken if it reaches the limit then it means failure And the they will give the reconfirmation   it will be told if you success or not for the choice you choose

ATM disadvantages

It usually placed on small narrow place

someone can make fake ATM machine 

Some bank charged the customer for the use of ATM machine

Chip and pin in the ATM

Usually use for security

Example restaurant

The waiter will slide the card using the machine and then the restaurant will ask the customer to enter their pin and then the machine will check the pin it then will shown that if the card is invalid or out of limit even if it was valid and then the customer write a false pin or the balance doesn’t enough then it will automatically cancel the payment method

This system usually use like in airport or in shops

Library system

2 files:

Book file and then borrowers file

If a customer borrows a book then the librarian  will scan the book and then it will write a file about the borrower and the information of the book

If the book was given back to librarian it will be rescan and then will rewrote the status of the borrower

Expert system

is a computer program that simulates the judgment and behavior of a human or an organization that has expert knowledge and experience in a particular field.

example : chest games 

1 expert will be asked about the activity

2and then the interviewers will put the data from the interview

3everything will be written

4rules base is designated and created

5inference engine this will make the user interface

6 it will be publish for testing

Advantages

The choice is constant

It will never forget

They will time more efficient

Disadvantages

They cannot answer things about something logic

It can be expensive to set it up