HCI research described in this section provides an overview of
the social systems that have been designed and evaluated to motivate health behaviour change. Generally, the systems include sharing of information with some providing the ability to communicate through such means as commenting (Houston), through an online
community (SUH), or through communication with one’s diabetes educator (MAHI). However, none of these systems evaluated the level of socialization that was occurring, or provided specificdesign strategies to promote more social interaction.