Lifelogging is a technically inspired approach that attempts to address
the problem of human forgetting by developing systems that ‘‘record
everything.’’ Uptake of lifelogging systems has generally been disappointing,
however. One reason for this lack of uptake is the absence of design
principles for developing digital systems to support memory. Synthesizing multiple studies, we identify and evaluate 4 new empirically motivated
design principles for lifelogging: Selectivity, Embodiment, Synergy, and
Reminiscence. We first summarize four empirical studies that motivate
the principles, then describe the evaluation of four novel systems built to
embody these principles. We show that design principles were generative,
leading to the development of new classes of lifelogging system, as well
as providing strategic guidance about how those systems should be built.
Evaluations suggest support for Selection and Embodiment principles,
but more conceptual and technical work is needed to refine the Synergy
and Reminiscence principles.