Analysis and evaluation of partitioning techniques for multi-user CAD

Abstract

Recent advances into multi-user computer-aided design environments have enabled designers and engineers to work simultaneously on the same model in different locations. This technology enables different individuals and companies across the globe to share 3D model data in more direct ways. However, intellectual property becomes a larger issue when sharing potentially sensitive data with others in real-time. Partitioning techniques are one strategy to mitigate this risk within multi-user CAD environments. This study explores and evaluates six different partitioning techniques across various metrics identified in the literature and performed a user study to assess the methods' capabilities to hide or suppress data from others. Best practices are suggested and survey data from the participants are analyzed. Overall, the Planar Decomposition technique was found to offer the best trade between protecting data, facilitating multi-user design, and encouraging users to focus only on the relevant information for a design activity.