Expert systems

Expert systems

1. Made of..

   • knowledge base
     • Is the collection of facts and rules,it is created from information provided by human experts
   • An inference engine
     • Acts rather like a search engine, examining the knowledge base for information that matches the user's query
   • user interface
     • Allows a non-expert user to question the expert system, and to receive advice.
   • Rules base
     • how the knowlege or data from a database connects together

2. Advantages

   • Expert advice available all the time
   • Expert systems are consistent
   • Less skilled workforce
   • Efficient way of getting answers as it does not involve additional help staff
   • No "Human Errors"

3. Examples

   • Medical diagnosis
   • Playing strategy games like chess against a computer
   • diagnose car engine problems
   • Providing financial advice

4. Disadvantages

   • Training staff is needed
   • There can be errors in the knowlegde base
   • Expert system lack of common sense
   • Is Expensive to setup

5. Are..

   • Computer softwares that attempt to act like a human expert on a particular subject area.

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