Table Constraints are an extension of xBRL-CSV, enabling very efficient basic validation checks of tabular data. XBRL Formula Rules provide a powerful validation mechanism for most use cases, but can be too resource-intensive on large datasets with millions of rows – as in some banking and insurance collections. Table Constraints makes it possible to capture many common rules in a manner that leverages the tabular nature of the data in order to provide certain important validation checks orders of magnitude faster than has been previously possible.

The Proposed Recommendation represents significant progress. It is the last stage in development before the official Recommendation, meaning that we now have a near-final version with multiple independent software implementations, incorporating substantial feedback and testing results.

Under XBRL International’s standards process, a Proposed Recommendation can only be published once we have two independent implementation that pass the specification’s conformance suite.