  In the early stages of designing graphical user interfaces (GUIs), the look
(appearance) can be easily presented by sketching, but the feel (interactive
behaviors) cannot, and often requires an accompanying description of how it
works (Myers et al. 2008). We propose to use crowdsourcing to augment early
sketches with interactive behaviors generated, used, and reused by collective
"wizards-of-oz" as opposed to a single wizard as in prior work (Davis et al.
2007). This demo presents an extension of Apparition (Lasecki et al. 2015), a
crowd-powered prototyping tool that allows end users to create functional GUIs
using speech and sketch. In Apparition, crowd workers collaborate in real-time
on a shared canvas to refine the user-requested sketch interactively, and with
the assistance of the end users. Our demo extends this functionality to let
crowd workers "demonstrate" the canvas changes that are needed for a behavior
and refine their demonstrations to improve the fidelity of interactive
behaviors. The system then lets workers "remix" these behaviors to make
creating future behaviors more efficient.
