Object Oriented Software Engineering   View all facts   Glossary   Help | 
| subject > criterion > principle > usability principle > usability principle 4 | 
| usability principle 4 comparison table | ||||
| Subject | is an instance of | follow by | is a kind of | state | 
|---|---|---|---|---|
| usability principle | principle | |||
| usability principle 4 | usability principle | 
  | Ensure that the user always knows what he or she can and should do next, and what will happen when he or she does it | 
Next usability principle: usability principle 5     Up: usability principle    Previous usability principle: usability principle 3