The interface as a spec: including stories inline
"Our very first Getting Real post was about saying no to the functional specifications document. We suggest building the interface first and using the actual screens as the functional spec. Read the post linked above to find out why.
There are times, however, when the interface doesn’t provide all the information required for the programmer to hook it up. Designers should always present the programmer with the multiple states of an interface element so the programmer understands what to display when this or that happens. But sometimes designing the static states takes more time, and doesn’t quite represent reality, as well as a brief note about how the functionality works. The key is to make this note in context — right next to the interface element its describing. The combination of real visuals and a brief contextual note shrink the chances of misunderstanding to near zero.
For example, we have tag functionality in the Sunrise app we’re developing. So, in order to fully explain the “entering a tag” functionality, we mocked up the basic UI and then included a story underneath the UI elements." continued ... (Via Signal vs. Noise)

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