Formal Definition
Industrial automation systems and integration, Integration of life-cycle data for process plants including oil and gas production facilities, Part 6: Methodology for the development and validation of reference data
What does that mean ?
Part 6 describes what needs to be stored against each and every reference data item and also how to validate any and all reference data items.
Each and every reference data item, must have a reference data item identification, a reference data item text description and formal relationships.
This part also describes what it takes to have the reference items approved.
As Part 6 is a formal procedure it is not available on line nor is it expected to change.