Define once.
Use everywhere. Build the future together.
Define construction data once and share it across tools, partners, and markets — openly, collaboratively, and without lock-in.
Explore Public Dictionaries
View allWhy Open Dictionary?
Digital collaboration in construction breaks down when data is defined differently by every organization and system.
Open Dictionary exists to replace fragmented, proprietary approaches with a free, open and common foundation for data exchanges in the built environment.
It enables organizations to exchange data with confidence — across tools, partners, and markets — without surrendering control to closed platforms.
Open by default
Open Dictionary is free to use for publishing and browsing data dictionaries, removing commercial barriers to industry-wide collaboration.
Built to be used, not just specified
Open Dictionary provides intuitive user interfaces for authoring, managing, and governing data dictionaries. This allows organizations to maintain high-quality definitions efficiently — without complex tooling or specialist skills.
Standards-compliant and future-proof
Open Dictionary is built on international ISO standards, ensuring interoperability today and independence from any single vendor or technology tomorrow.
Open Dictionary is for
Industry organizations & initiatives
Lead alignment by publishing shared data dictionaries that enable consistent data exchange across your industry.
Commercial actors
Open Dictionary enables distributors, property owners and construction companies to standardize their data exchange across systems and markets, reducing integration effort and operational risk.
Building product manufacturers
Gain quick and efficient access to the standardized data templates you need to supply your product data to customers, platforms, and markets.
Access Templates for Your Building Products
Sign up to access and download free, standardized data templates for your building products. Get the guidance you need from a rapidly growing industry community.
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