Buttons…

• Call dialog boxes
• Submit data
• Act on user input or user selection

Links…

• Go to other pages
• Go to another point in the current page
• Are used for tabs
• Are used for navigation bars
• Where button text would be far too long

Could be button or link…

• To hide or show dynamic layers
• To contrast between the primary action and a secondary action, so people don’t accidently choose the secondary action (eg. the button says ‘Apply’ and the link says ‘start again’)