Expert Systems- this has the word format of the assignment attached and includes diagrams

Expert Systems

ABSTRACT

Expert systems are used in all sectors of organizations to help aid users with their work. This paper will be giving a brief introduction to expert systems and will be looking back at the history of expert systems. This paper will also look at the characteristics of expert systems and what they are used for. The advantages and disadvantages of expert systems will also be discussed in this paper.

[1] Introduction

Expert systems are programs that provide the type of advice that would be expected from a human expert. It is also known as knowledge based system, expert systems are able to store and manipulate knowledge so that they can help a user solve a problem or make a decision.

Expert systems technology drives from the research discipline of Artificial Intelligence (AI): It is said by Jackson (1998, pg2) "Artificial Intelligence is a branch of computer science concerned with the design and implementation of programs which are capable of emulating human cognitive skills such as problem solving, visual perception and language understanding"

The main features of expert systems are:

·It is limited to a specific domain

·It is typically rule based

·It ca reason with certain data

·It delivers advice

·It explains reasoning to the user

Typical tasks for and expert system involve:

·The interpretation of data such as solar signals

·Diagnosis of malfunction such as equipment faults or human diseases

·Structural analysis of complex objects such as chemical compounds

·Configuration of complex objects such as computer systems

·Planning of sequences of actions such as might be performed by robots

Generally speaking, expert systems overall performance depends on the knowledge it can bring to bear on a problem to be solved.

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