"Aufs was entirely re-designed and re-implemented Unionfs. After many original ideas, approaches, improvements and implementations, it becomes totally different from Unionfs while keeping the basic features.
Unionfs is being developed by Professor Erez Zadok at Stony Brook University and his team. If you don't know Unionfs, I recommend you to try and know it before using aufs. Some terminology in aufs follows Unionfs's."
