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Standards Development
This document specifies a quality assurance methodology for information exchange between Building Information Modelling (BIM) and Geographic Information Systems (GIS), defining framework elements, quality principles and validation facets, and specifying methods for quality requirements specification, measurement and reporting. This document does not apply to the management or assessment of data quality within BIM or GIS individually.
The integration of Building Information Modelling (BIM) and Geographic Information Systems (GIS) has become essential for modern infrastructure development, smart city initiatives, and digital twin applications. There is substantial and growing demand for seamless information exchange between these two domains across the entire asset lifecycle—from planning and design through construction, operation, and maintenance. Governments worldwide are increasingly mandating BIM adoption for public projects, while simultaneously requiring integration with municipal GIS platforms for urban planning, permitting, and asset management purposes. Despite the critical importance of BIM-GIS integration, significant differences exist between these two domains regarding their standard frameworks, data schemas, coordinate reference systems, levels of detail, and semantic definitions. When information is exchanged between BIM and GIS environments, these differences can result in: - geometric distortions or loss of precision during coordinate transformation; - semantic misinterpretation when mapping between different classification systems; - incomplete data transfer where attributes or relationships are not preserved; - inconsistent representations that undermine downstream decision-making. Currently, there is no internationally agreed method for stakeholders to verify whether exchanged information meets their intended requirements, or to identify where and why quality degradation has occurred. Each organization develops its own ad-hoc validation procedures, leading to duplicated effort, inconsistent practices, and a lack of interoperability assurance across project teams and supply chains. The ISO 23143 series is being developed to address BIM-GIS information exchange: - ISO 23143-1 establishes core principles and specifications - ISO 23143-2 addresses metadata facilitation - ISO 23143-3 provides concept linking between BIM and GIS standards - ISO/TS 23143-4 focuses on geometric representation alignment These documents define how to exchange information but do not address how to verify that an exchange has been successful and that the exchanged information is fit for purpose. This proposed Part 5 fills this critical gap by providing a quality assurance methodology that complements and completes the series. Standardized quality assurance for BIM-GIS information exchange will: - reduce project risks by enabling early detection of quality issues in exchanged information before they FORM 4 – New Work Item Proposal (NP) Version 01/2025 impact design, construction, or operational decisions; - lower costs by eliminating redundant quality checking procedures and reducing rework caused by undetected data errors; - facilitate trust and interoperability among project stakeholders, software vendors, and across international boundaries; - support regulatory compliance where authorities require objective evidence of the quality of exchanged information for permitting, asset handover, or public safety purposes; - enable reliable digital twin implementations that depend on accurate and consistent exchanged information across BIM and GIS environments. ISO 23143 Parts 1-4, ISO 19157-1, ISO 9000 series, ISO 19650-4
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