In the project “Your Finger is the Key” we look into different scenarios and modifications of an innovative fingerprint card that works in combination with a card reader. The innovation hereby is that the biometric information of the fingerprint does not leave the smartcard after being enrolled. The aim is to explore together with potential users in participatory design activities different features of the card – its shape and direction, placement of a fingerprint sensor, LEDs and a PIN pad as well as LED feedback – and to adjust these details according to the requirements.
We built for this purpose various low-fi prototypes of the card, LED animations as well as packaging ideas with integrated manuals. Afterwards, we tested and discussed them in diverse situations (while acting out different possible scenarios) during iterative workshops with users. In addition, workshop participants create in co-design activities own versions of a fingerprint card.