Without rules, there can be no structure. Although BIM technology captures data throughout a project’s entire lifecycle, the absence of a unified standard prevents all parties from relying on consistent BIM data input. This leads to data redundancy or gaps in BIM model usage, hindering efficient information exchange across different disciplines and stakeholders. Therefore, to fully realize BIM’s practical benefits, establishing comprehensive BIM standards that define information formats and collaborative protocols is essential.
Currently, BIM standards fall into two main categories:
1. Industry Data Standards: This category includes IFC (Industry Foundation Class), IDM (Information Delivery Manual), and IFD (International Framework for Dictionaries) standards. These serve as the backbone for BIM technology:
- IFC acts as the data storage standard, facilitating data sharing across different disciplines and software platforms within the construction industry.
- IDM defines standards for information transmission during project workflows.
- IFD establishes the semantics and definitions of information.
2. Application Scope Standards: These standards vary based on the jurisdiction and include international, national, regional, industry, enterprise, and project-specific standards. Differences in laws, regulations, and technical requirements across regions have led to the development of diverse standards tailored to local needs. Their primary focus is to standardize BIM workflows, model accuracy, drawing conventions, and other criteria, providing a framework for all stakeholders to manage the BIM process effectively during construction projects. The BIM standards commonly referenced in design work typically fall under this second category.
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