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Four main types of user support
Quick reference, task specific help, full explanation, tutorial.
Key requirement for good user support: Availability
Continuous access concurrent to main application.
Key requirement for good user support: accuracy and completeness
Help matches and covers actual system behavior.
Key requirement for good user support: Consistency
between different parts of the help system and paper documentation.
Key requirements for good user support are: Robustness
Correct error handling and predictable behavior
He requirements for good user support: Flexibility
Allows uses to interact in a way appropriate experience and task
Key requirements for good user support: unobtrusiveness
Does not prevent the user continuing with work
Characteristic limiting online tutorials' usefulness
Online tutorials can be useful but are often inflexible.