University of Technology Sydney. Faculty of Engineering and Information Technology.Nowadays people deal with unprecedented quantities of personal digital media. This thesis focuses on digital photos, one of the most prevalent digital records people keep. The photos that people capture or collect for their personal collections often acquire personal value as external representations of experiences that can cue autobiographical remembering. The autobiographical value of photos can support remote and especially collocated interactions with others. As a result of technological developments in capturing moments and experiences, people have too many photos to manage, and they lack the time, tools and motivation to curate them effectively which h...