Yes, OT = Operational Transform[1]. Usually the difference is that operational transform algorithms create an ordered global list of all the changes (typically

Yes, OT = Operational Transform[1]. Usually the difference is that operational transform algorithms create an ordered global list of all the changes (typically on a centralized server). They flatten operations using a heuristic "transform" function. CRDTs don't reorder the changes, but guarantee that when all changes are merged (in any order) the final result would be the same. For example, MAX() is a complete CRDT merging function. But the distinction gets much more blurry at the edges. You can make OT algorithms which work without a central server, and CRDTs which use operation reordering to guarantee merge consistency. [1] https://en.wikipedia.org/wiki/Operational_transformation https://en.wikipedia.org/wiki/Operational_transformation