The NFC voting process is great.
There was also sessions where the speaker's team used the NFC app to "register" the attendee
Nice but I've experienced some difficulties :
1- what if you do not change room between sessions !!
2- sometimes it's too crowded (or we are too much in a hurry) to vote
3- sometimes it didn't worked (session about chrome dev tools)
As an improvement I've suggestions :
a- "physically" load balance the voting stands (as Stephan suggested as a joke in the key note)
- one stand in the room like it is now and
- another one maybe before the door
this could solve points 2 and 3
b- enhance the mobile app (Devoxx wristband) to have the ability to vote to a session
- ex : when recognized by the app (NFC involved) chose a menu like 'vote' allowing you to choose one session then validate your choice
this could solve all points (1,2 and 3)
Thank you for this great conference
I loved Devoxx France and I'm discovering Devoxx 'Original'
Great job, keep going!