Abstract: A system and methodology for human behavior modification or maintenance implemented by electronic two way communication between a host computing device with software adapted to the task, and a user. The system employs collected data regarding user identity, availability, and behavior, and generates a customized program of sequential events during identified user available time segments on a plurality of days. The events are constantly re-allotted to the available time in given daily time segments through a feedback acknowledgment from the user subsequent to communications sent to the user about an event. This results in a constantly updated program based on user responses which continually adjusts for the remaining time in the time segment on any day during the program.