Consistency Maintenance in Collaborative CAD Systems
Zhu Qing, Huajun Liu, He Fazhi, Zhu Fuxi, strong · 2013
The difference between real-time CSCW systems and traditional distributed systems is that the for- mer one is supposed to provide a natural, free and fast interface for multi-user interaction. However, the typical multi-user interaction method applied in 3D CAD systems is strict consistency maintenance, such as locking mecha- nism and floor control, which may generate a stagnant and unnatural interface. This paper proposes a 3D semantic- based Operational transformation (OT) to support less constrained multi-user interaction and to achieve consis- tency in collaborative CAD editing (co-CAD) systems, and it can be used in many collaborative CAD/CAM indus- tries.