Open sesame: re-envisioning the design of a gesture-based access control system.

We present results of an exploratory study employing a Wizard of Oz mockup of a new gesture-based access control system we are constructing for our lab's entryway. Among user interactions witnessed, we have identified several behaviors of interest to security researchers and HCI researchers alike. We discuss our security system design approach as an extrapolation of two identified trends, demonstrating the potential for the felt experience of pleasurable and playful systems to help solve difficult interaction problems. We also show the great value of prototyping a mockup to reveal designers' assumptions about human interactions with new technology use cases.