Memory Tracer & Memory Compass: Investigating Personal Location Histories as a Design Material for Everyday Reminiscence

With the massive adoption of smartphones, location trackers, and GPS-based applications, data is being generated that captures people's geographic locations in more precise detail than ever before. Personal location history archives offer a potentially valuable and overlooked resource for supporting reminiscence and recollection of the past. Yet, little design research has explored how location histories can be used as a material in designing such experiences. To investigate this space, we engaged in a practice-based design research process that resulted in two design artifacts. Memory Tracer is a tangible device that occasionally, yet perpetually surfaces locations from the past bound to today's date. Memory Compass is a smartwatch application that uses a ‘casting’ interaction enabling a user to retrieve and explore locations from their past, across space and time. We unpack and reflect on key decisions in our design process and conclude with opportunities for future HCI research and practice.