In this paper, software architecture model “MVC-3DC” for Collaborative Augmented and Virtual Reality Systems design is proposed. This model is the results of merging several aspects: Human-Computer Interaction (HCI), distribution systems, computer-supported cooperative work (CSCW) and new technologies such as augmented reality and virtual reality. MVC-3DC integrates collaboration principles between remote users. MVC-3DC allows a low dependency between components such as the core functions, 3D graphics API and data distribution modes. The proposed architectural model integrates simulation models, SDKs and algorithms for different nodes involved in a collaborative session. This facilitates interoperability and capability to manage heterogeneity and relationship between different nodes participating in the collaborative session. Finally, our model makes it possible to integrate other toolkits without completely changing the structure of collaboration model. A simple adaptation could be made.