Immersive representation exercise in BIM through the integration of prerequisites and requirements: structuring of an artefact applied to a case study

This study explores the level of informational granularity required when immersive technologies are integrated into BIM for collaborative processes in public procurement. Despite advancements in immersive technologies and BIM, there is a significant gap in the standardization and structuring of information for immersive experiences in the AEC sector. Current standards and guidelines primarily focus on structuring and organizing data in a traditional digital environment, overlooking immersive aspects such as representation and interaction within immersive ecosystems. This creates a disparity in the effective use of BIM with immersive technologies. The concept of the Immersive Necessity Level was developed with the aim of addressing all the informational gaps required by immersive ecosystems, which are not currently met by the Informational Necessity Level defined by ISO 7817-1. Through three simulations, the study investigates how data specificity and informational granularity influence users' immersive experiences. The findings highlight the importance of defining clear prerequisites and requirements when outlining an informational framework using immersive technologies in conjunction with BIM methodology. This study aims to bridge this gap by proposing a structured framework to define the levels of immersive necessity in BIM projects. Furthermore, the research identifies challenges and potential improvements for future investigations, contributing to enhancing the standardization and effectiveness of the use of immersive technologies in the AEC sector.