The DEXPI project produces informal and formal specifications for the data-exchange in the process industry.
DEXPI Specification (Version 1.1 from March 2017)
based on ISO 15926 and ProteusXML
The DEXPI Sandbox
The DEXPI Export Verificator
The DEXPI Information Model
The DEXPI group has agreed about the concentration on a first exemplary Process and Instrumentation Diagram for the application of data exchange:
P&ID – Piping example based on ISO 10628: