What is card based design?
As the name suggests, a card-based design is made up of a number of cards — it's a bit like a page with Polaroid prints.
What is card based web design?
Card based web design breaks down the content of a page into smaller blocks in order to focus your attention on each of them. A simple and well-known example of card-based interface is Pinterest; easy, clean and organised way of displaying several different topics to users and easy and eye-catching way to see it.
What is card based prototyping?
Card-based prototyping will allow us to look at the sequences of interactions we might have with the actual interface. You can take a set of three by five index cards and have each represent a sequence of a screen that the user would encounter as she tries to accomplish a task.