In recent years, the interest of small and medium sized enterprises towards Virtual Reality (VR) systems is strongly increased thanks both to the improvement of VR tools effectiveness and to the cost reduction of technologies implementation. Due to the growing number of installed systems, many SMEs (Small Manufacturing Enterprises) companies require robust methods for evaluating technology performance. In this context, the present paper presents a metrics-based approach in order to analyze the VR system performance. It is specifically dedicated to the design review process during styling product design. The evaluation parameters are related to the effective communication and preservation of design intent. Metrics are classified in two main classes. The first one is related to the product, the process and the characteristics of VR technology. The second one is related to the design intent meanings preservation along the design process. Two experimental case studies are reported in order to test the approach in different operative fields.

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