Attendance and check-in

Per day, or per session when sessions run in parallel.

Participants show a QR code on the course day. Scan it with the phone's camera to check them in. The day's list works for anyone without a phone.

When sessions run at the same time in different rooms, participants are checked in to the session they go to. The room's host opens the session's list – then the phone remembers the session when scanning – or prints the sign for the door, which participants scan themselves.

Attendance decides the certificates: at least 80 percent of the days.