Sisyphorest: maintenance goal support by responding to trends.

The stage-based model of personal informatics [4] defines a long-term maintenance phase during which a person tries to maintain a behavior change. Literature review and a survey of long-term goal trackers inspired us to create Sisyphorest, a goal-tracking system for the maintenance phase that supports the user by transforming its visualization in response to trends in data. We describe the system and discuss a preliminary evaluation.