; (2) enable high quality data through schemas, with accompanying metadata (as defined under section 3502 of title 44, United States Code) documented in machine-readable taxonomy or ontology models, which clearly define the data’s semantic meaning as defined by the underlying regulatory information collection requirements; (3) assure that a data element or data asset that exists to satisfy an underlying regulatory information collection requirement be consistently identified as such in associated machine-readable metadata; (4) be nonproprietary or made available under an open license (as defined under section 3502 of title 44, United States Code); (5) incorporate standards developed and maintained by voluntary consensus standards bodies