An introduction to functional design. We’ll identify a subset of requirements and create an interaction flow. We’ll then look at each step in the interaction flow with: use cases, storyboards, wireframes and business rules.
Once we’ve locked in a set of requirements, we can start designing! We’ll begin by creating a list of use cases, and storyboards (scenarios). Storyboards and wire-frames are often created in parallel, and changing one normally leads to changes in the other.