Banking Application, Expert System, Library System

Banking Application

The use of computer technology has been better and better, now we are going to learn about it.

ATM: Allows almost anywhere access to your money; transfer, check balance, take money, change

ATM or automatic teller machine is the machine where people can do transaction with money or even can take money out from it.

Library system: it is used in the library to keep check on the records of who borrowed the book and what book is borrowed everyday.It is also used in the library to keep check on the records of who borrowed the book and what book is borrowed everyday.This system makes the librarian easier to do his work rather than recording it in a book. This system needs a barcode so that it can just be scan by a scanner like in the supermarket.

The expert system

It is developed to mimic the expertise and knowledge of an

diagnosing a person’s illness

[1] diagnostics (finding faults in a car engine, finding faults on a circuit board, etc.)

[1] prospecting for oil and minerals

[1] tax and financial calculations

[1] chess games

[1] identification of plants, animals and chemical compounds

[1] road scheduling for delivery vehicles.

Knowledge Base = a database that  allow complex storage and retrieval requirements of the management system

 Rule Base = It is similar to a 'Setting' option of an application

Inference Base = It is like a rule base, but focuses more to the system and not how the program looks like. It is also a type of a reasoning engine

How to set up an expert system:

Experts in the field are interviewed to find out what is needed in the expert

system.

Data is then collected from these experts.

A knowledge base (defined below) is designed and then created.

The rules base (defined below) is designed and created.

An inference engine (defined below) is designed and created.

The input screen and output format are also designed and created – this is

known as the user interface.

The expert system is tested against known conditions and scenarios.

It is also checked to see if it meets the original specification.

Experts are interviewed about how effective it is before the expert system goes

out on general release.

Advantages

Expert systems provide consistent answers.

They never ‘forget’ to answer a question when determining the logic.

Using expert systems reduces the time taken to solve a problem.

A less skilled work force is needed, which gives the potential of saving money,

but also allows areas of the world access to expertise which they could not

normally afford.

Disadvantages

They tend to lack common sense in some of the decision-making processes.

Errors in the knowledge base can lead to incorrect decisions being made.

It can be expensive to set up in the first place.

Considerable training is necessary to ensure the system is used correctly by the

operators.

•Chip and Pin: to ensure higher security rather than signatures, every chip and pin is different, a magnetic strip of your card has a unique pin which has been registered to your account or balance, it can also be used to pay in restaurants and shops.