simple task manager

This software deals with follow-up from appointments in a health care office

-Multi-user (internal, no public users)
-Import a csv list of appointments incl name, contact info, misc other data
-Process each appt according to business rules to create task list
-User approves of task list and sets deadlines
-Tasks assigned to users
-Notes/data collection for each task
-Task completion for each task
-Dashboard view with filters/sorting/search
-SSL and password encryption
-Macro emails