During the product development process, it is of great importance to consider the later life phase situations of a product. This includes the interaction of the product with its environment and the human actor(s) in its different life phases. Therefore, an early evaluation of a product and its later life phase interactions are of great value. Virtual Reality (VR) technology is seen as very important at this point, as it can help the designer to realize the later life phase situations of a product inside VR. However, the preparation of VR-scenes remains a difficult task, as it requires a great amount of time and effort. Furthermore, the current methods for the preparation of such scenes offer very limited reusability.

This paper will focus on an existing method that uses Model Based Systems Engineering (MBSE) to describe the VR-scene for a CAVE-type VR-system. This method will be further extended and an improvement to the existing modeling approach will be presented to achieve a faster simulation in VR and reusability of VR-scenes. Furthermore, a detailed comparison of the conventional and the new approach will be presented. The new approach enables a faster simulation that will be validated by comparing the execution speed of both approaches under the modeling approach section. The reusability perspective of the prepared VR-scene will also be discussed.

A Head Mounted Display (HMD), in comparison with CAVE type VR-systems, offers a cost reduction in the use of VR technology. This paper will also provide the idea for achieving a simulation in HMD while using the same MBSE-approach used for CAVE type VR-systems. The flow of information for simulation in HMD and the idea of implementation will be presented in detail.

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