Accessible Interface for Context Awareness in Mobile Devices for Users With Memory Impairment

2.1. Systems to Improve User's Memory

a person’s memory can be improved by showing pictures of people, presenting previous events, or asking questions about a previous experience. The work in Martins et al. (Martins et al. 2014) helps users with dementia by collecting users' data automatically from the smartphones. Then, the system uses the users' private social network to validate and personalize the collected data. In another work, Memory wallet (Bourgeois 1992) is presented and used to improve user's memory by showing pictures of familiar people, places or events.

Several reminder memory systems have been developed (e.g., MEMOS(Schulze 2003)). The purpose of such systems is to notify the user about a specific event which is added to the calendar. The previous solutions have mainly two drawbacks: first, they need explicit user interaction to set up the reminder. Second, they cannot provide effective services to users with memory impairment about unplanned or unscheduled activities.