Specifications

The DEXPI Specification 2.0 defines a standardized data model for plant models and process models, enabling consistent exchange of engineering information, especially BFDs, PFDs, and P&IDs, across tools and organizations. Version 2.0 further improves interoperability and extends support for process industry requirements. It comprises the DEXPI P&ID Specification 1.4 as plant model and an improved version of the DEXPI Process Specification as process model.

DEXPI 2.0 is the first version making use of DEXPI XML as the format for the specification as well as the serialization of instances/diagrams. Starting with this version, DEXPI can be fully used without the need for implementation of Proteus XML schema.

Available as [PDF], [HTML] and with [supporting materials]. Source of truth at [GitLab].

The DEXPI P&ID Specification defines a standardized data model for piping and instrumentation diagrams, enabling consistent exchange of engineering information across tools and organizations. Version 1.4 further improves interoperability and extends support for process industry requirements.

Available as [PDF], [HTML] and with [supporting materials].

The DEXPI Process Specification provides a harmonized data model for process engineering information, complementing the P&ID specification and supporting seamless integration across the asset lifecycle. Version 1.0 marks the first release and establishes the foundation for further extensions.

Available as [PDF], [HTML], and with [supporting materials] and a [manual].

All legacy versions of the DEXPI specifications are available in our [GitLab repository].
This ensures full transparency and traceability of the development process.

DEXPI specifications are published under a Creative Commons license. This guarantees open access and allows free use, sharing, and adaptation of the specifications in compliance with the license terms.

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The DEXPI specifications are provided “as is” without any warranties of any kind, whether express or implied, including but not limited to accuracy, completeness, or fitness for a particular purpose. DEXPI e.V. accepts no liability for any damages resulting from the use, misuse, or reliance on the specifications or related materials. Users are responsible for ensuring compliance with all applicable laws, standards, and regulations when applying the specifications in their own environments.