Errr... So why have the FAA / NATCA Rejected it?
In the UK it has been a COMPLETE DISASTER.
Organising the staffing, taking into account "employee preferences" is something that ShiftLogic fails to do MONTH AFTER MONTH. It also costs a small fortune to purchase / run.
Contrast this with the "old" methods. Large piece of graph paper, pencil, eraser, leave book and this months preferences. One person, half a day and.... hey presto a workable roster. Total cost = half a day in lieu owed (i.e. next to nothing) and most staff happy with what they've been asked to do.
take yr pick
BEX