A purely user-oriented description of the expected behavior (textual) + a mockup
As for the description, it should be very concrete: what happens in the UI?
An example of a functional spec I had made for multi-user functionality:
A purely user-oriented description of the expected behavior (textual) + a mockup
As for the description, it should be very concrete: what happens in the UI?
An example of a functional spec I had made for multi-user functionality: