Scenario
Designs
Design 1: Spin the Wheel
Design 2: Auction Sale
This interface models the decision-making process as an auction sale, where participants bid for the opportunity to choose one aspect of the decision-making process (location, cuisine, price, restaurant). Participants are given an allocation of credits to spend during four rounds of bidding.
First, each user signs in (figure 1), and one participant creates a new event and invites the others (figures 2-5). The decision is then made through four rounds of bidding that work like a normal auction sale (figures 7-11). Each participant is presented with the highest bid, and his/her own highest bid so far (figures 8-9). If a participant is not in the lead, he/she may increase his/her bid to one more than the previous highest bid. After a bid has not been made for a certain length of time (~10 seconds), the auction ends and the winner of that round may choose one aspect of the decision (figure 10). Others are then informed of the choice (figure 11). The auction process happens four times. The first three rounds determine the location, cuisine, and price range of the final choice; based on those results, the interface presents the participants with several restaurant choices, and a fourth round of bidding determines the final result.