Framework for Integration of Virtual Reality into Model Based Systems Engineering Approach

Model Based Systems Engineering (MBSE) is an ever-growing philosophy in order to develop, manage and sustain the increasingly complex systems. In present practice, MBSE is overwhelmingly replacing document centric approach by model centric approach. Most widely used MBSE language is the "Systems Modeling Language (SysML)", which follows Object Oriented Systems Engineering Methodology (OOSEM). Most MBSE approaches including SysML leverages static viewpoints and limited simulation capability to create and analyze a system model. Now, SysML as a MBSE language is matured enough to incorporate widespread dynamic modeling and simulation into MBSE practices. Virtual Reality can play an important role on creating dynamic MBSE approaches. This research work has proposed a framework for incorporating Virtual Reality (VR) tools into MBSE practices in order to develop "true" model centric approach. The framework consists of a System Model built using SysML, VR tool (Unity 3D), scripting languages and System data sources. SysML diagrams can represent Requirements, Use Cases, Concept of Operations, System Architecture, System Behaviors, Parametric analysis of a System of Interest (SOI) in the System Model. The framework will facilitate dynamic simulation of the system being described in the System model. VR tools can visualize the use case scenarios and simulate the behaviors of the system described in the Model. This framework will also facilitate automatic requirements verification through interactive VR environment. The system model is fed into the VR environment for the analysis of the proposed system architecture, use cases and requirements. Based on the VR environment simulation results, modifications are incorporated into the System Model. The integration of VR tool with the SysML System Model (which acts as a source of truth) is performed with the aid of scripting languages. Moreover, a System Data source will support both the model and VR environment simulation. Finally, the research paper has mentioned few implications to implement the framework and proposed possible solutions.