Prime Timetable can be accessed from anywhere via Internet connection. That means that you can access it from your school/home computer or phone/tablet. But, that's not all: you can share your timetable with other teachers and collaborate simultaneously with all of them! But how does it work?
To simulate multi-user collaboration just sign-in and open the same timetable in two tabs or browsers as illustrated in the screenshot below.
Notice that the first user has 2 more teachers added and the second has just updated Teacher 1 into "Teacher 1 – updated". What is going to happen when the first user clicks save and then the second one does the same?
No need to bother, all changes will be properly saved and the last saved user will be synchronized with the latest changes (the owl will hoot what's happened behind the scene). The first user will be synchronized upon the next save or open.
On the technical side, Prime Timetable uses "last save wins" concurrency model which we found suitable for timetablers.
Overall, rest assured that you can freely collaborate even on the same school timetable, because all changes will be properly synchronized. Happy timetable collaboration!