The Bentley iTwin Platform is an open, scalable cloud-based Platform-as-a-Service (PaaS) developed by Bentley Systems that allows organizations to create, visualize, and analyze digital twins of infrastructure assets.
Unlike a static 3D model, an iTwin functions as a dynamic, living digital replica. It merges disparate CAD, BIM, and GIS design data with real-world reality capture (photogrammetry and laser scans) and live IoT sensor feeds into a unified, 4D timeline environment. Core Architecture of the iTwin Platform
The platform relies on several foundational building blocks to manage complex infrastructure data:
iTwin Platform: The underlying cloud environment responsible for security, hosting, and data federation.
iModels: The core cloud-ready storage format that translates and compresses native engineering files (like Revit, IFC, and DGN) into a common language without losing structural intelligence.
iTwin.js: An open-source JavaScript library that developers use to build customized web applications to view and manipulate digital twin data.
Data Synchronizer: Background services that continually monitor original native design repositories and feed updates into the cloud iModel to track modifications over time. Key Capabilities and Features iTwin Platform | Bentley Systems | Infrastructure Software
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