1 lists some existing conference platforms which already provide schedule interface (for attendees), and likely for organizers. Yet to be investigated/compared and an ultimate choice or features stated.
Hierarchy to allow calendars per "room" (could be SIG, hackathon, a session within main program or one of the aforementioned)
Visitor calendar (schedule new personal events, etc)
1 lists some existing conference platforms which already provide schedule interface (for attendees), and likely for organizers. Yet to be investigated/compared and an ultimate choice or features stated.