Evaluating First-time and Infrequent Use of In-Car Navigation Devices

Learnability and memorability, important components of usability, are frequently overlooked by existing research with respect to in-car navigation devices. To remedy this, a protocol for evaluating the learnability and memorability of an in-car navigation device is presented. Representative tasks are identified and then used in conjunction with paired-user methods. The protocol is applied effectively to a device and problems are identified