Casual/novice User :-



  • Have no prior knowledge of what is expected of them.



  • Must be guided step-by-step through interaction with machine.



  • Must be prompted for responses in a clear and understandable way.



  • If there is a widespread idiom for a particular type of application it should be followed.



  • Speed of operation of the system is less demanding as users require thinking time.


 

Experienced User :-



  • Whilst they may be familiar with common systems, any new system will be unfamiliar to them.



  • It is likely there will be areas of the system that are new to a user and for this area they will be casual users.



  • Resources for training and advice should be made available to take into account the varying ability of users.



  • Little prompting information should be displayed as too much is distracting.