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- A mobile system for collaborative design and review of large scale virtual reality modelsPublication . Campos, Pedro; Pereira Campos, Pedro Filipe; Gouveia, Duarte; Noronha, Hildegardo; Noronha, Hildegardo; Jorge, Joaquim; Jorge, JoaquimSeveral tools and research prototypes have been developed with the goal of improving the visualization, manipulation, design and review of 3D virtual reality models. However, most of the interactive technologies deployed in real world engineering contexts are still difficult to use. We present a novel virtual reality system specifically designed to support the needs of engineering teams working at oil platforms. CEDAR (Collaborative Engineering Design And Review) is based on multitouch and accelerometer input, and was designed and evaluated in close cooperation with researchers and engineers of a large oil industry company. The system allows the navigation, reviewing and annotation of 3D CAD (Computer-Aided Design) models in a mobile, collaborative context.