LIU Huajun, HE Fazhi, ZHU Fuxi, ZHU Qing. Consistency Maintenance in Collaborative CAD Systems[J]. Chinese Journal of Electronics, 2013, 22(1): 15-20.
Citation: LIU Huajun, HE Fazhi, ZHU Fuxi, ZHU Qing. Consistency Maintenance in Collaborative CAD Systems[J]. Chinese Journal of Electronics, 2013, 22(1): 15-20.

Consistency Maintenance in Collaborative CAD Systems

Funds:  This work is supported by the National Basic Research Program of China (973 Program) (No.2011CB302306), and the National Natural Science Foundation of China (No.61070078, No.41171311, No.41021061).
  • Received Date: 2011-04-01
  • Rev Recd Date: 2012-05-01
  • Publish Date: 2013-01-05
  • The difference between real-time CSCW systems and traditional distributed systems is that the former 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 mechanism and floor control, which may generate a stagnant and unnatural interface. This paper proposes a 3D semanticbased Operational transformation (OT) to support less constrained multi-user interaction and to achieve consistency in collaborative CAD editing (co-CAD) systems, and it can be used in many collaborative CAD/CAM industries.
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