Standardization of Level of Information Need (LOIN) in Building Information Modeling (BIM): Transition from BS EN 17412-1:2020 to ISO 7817-1:2024

This study examines the transition from BS EN 17412-1:2020 to ISO 7817-1:2024 using a comparative analysis method, focusing on the development of the definition of Level of Information Need (LOIN) within the scope of BIM in the construction industry. The research evaluates the scope, similarities, differences, application areas, benefits, and challenges between the two standards; it reveals the effects of the transition on information management processes, stakeholder collaboration, and project outcomes. Conducted using a five-phase analysis method, the study presents findings based on six fundamental criteria. While ISO 7817-1:2024 stands out for its global applicability, digital compatibility, and integration with international standards, the transition process reveals challenges such as training needs, compliance costs, and adaptation to regional regulations. The paper is structured into four main sections: literature review and research scope, methodological approach, discussion of findings, and conclusions with recommendations. This structure aims to provide both academic contribution and sectoral guidance, offering a strategic roadmap for the transition process to ISO 7817-1:2024.