I have some questions about ICT Paper 1!!!

[ja rule]

Can anone answer these questions please for me. They are from my textbook and past papers and I as not sure what the exact answer is, I only know vaguely and some of them not at all because our teaher didnt teach us

Much appreciated
How are expert systems used for medical purposes?
Describe and explain the two types of documentation?
Explain three waysan analyst could use to examine the old system?
Difference between relative and absolute referencing and when is each one used and why?
What is the difference between CRT and TFT monitor?

Jazakum Allahu Khair

 

[TheJDOG]

2nd question:
User documentation:
Ex: How to search and how to print.
Technical documentation:
Ex: Known bugs, and system flow charts.

3rd question:
Distribute questionnaires
Interview the users of the old sysytem
Examine the old system

 

[Jelleh Belleh]

How are expert systems used for medical purposes?

1. Patient inputs symptoms or answers a series of question on the input user-interface.
2. Inference engine searches the knowledge base for possible diagnoses.
3. The system outputs a list of possible diagnoses and treatments.

 

[egy]

doctors will input not patient