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.
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:
ÃÂ·It is limited to a specific domain
ÃÂ·It is typically rule based
ÃÂ·It ca reason with certain data
ÃÂ·It delivers advice
ÃÂ·It explains reasoning to the user
Typical tasks for and expert system involve:
ÃÂ·The interpretation of data such as solar signals
ÃÂ·Diagnosis of malfunction such as equipment faults or human diseases
ÃÂ·Structural analysis of complex objects such as chemical compounds
ÃÂ·Configuration of complex objects such as computer systems
ÃÂ·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.
The quality of internal data processing in turn depends upon knowledge acquisition, knowledge representation and...