Design principles

Design principles

1. Perceivability

   • if I look at a website and I cannot how or where to click to the next page it is unusable.
   • easyier to perceive the bigger a button is on a screen

2. Consistency

   • helps us make sense of the world and predict what might happen next
   • allows us to identify patterns and give then meaning
   • website navigation menu

3. Affordance

   • This is the way in which the perceivable characteristics of an object tell us how it can be used.
   • a button affords to be pushed down

4. Constraints

   • interactive options are restricted
     • may be to prevent the user from making a mistake

5. Feedback

   • critical to let the user know that they have engaged with the system successfully.