This document lays out the requirements for Predicate Improvement Process submissions, as detailed in the Predicate Improvement Process document.

Required in all submissions

Where values must be in specified list

If the predicate will only allow values from a specified list of allowed values (enumerated list, or enum), the following fields must be specified.

URLs in specified formats

If the predicate aims to capture data on urls in specified formats, it is best to capture this using the “text” field type and the following fields.