Interaction-style independent design principles
 

• Strive for consistency (constancy is a special type )
• a) internal;
• b) external with metaphor, and other software
• leads to higher conformity with user expectations
  

• Provide advance information

• Provide immediate feedback

• Permit easy reversal of actions (undo)

• Prevent errors; offer help in case of errors

• Reduce short-term memory load  

• Cater to user diversity; allow for personalization

• (Let the user be in control)