The object of the invention is a user interface for a device and a system for measuring and monitoring information which relates to diabetes care. The purpose of the invention is to facilitate and motivate a user to perform activities that are required in the care. In a preferred embodiment of the invention user specific information is stored in the measurement device with a user interface, such as a menu-based graphical user interface. The user may input performed activities through the user interface, and to store user's own figurative or sound data to be used by the user interface. The user interface may provide automatically suggestions for a user regarding the input.
