— a data format (in JSON) for the exchange of registry entries (AfA concept records) betweenregistry servers;— a set of RESTful operations for AfA registry servers to allow for the manipulation of AfA conceptregistry entries by external clients other than server-internal web interfaces.Cross References:IETF BCP 47DIS 24751-1IETF RFC 3986IETF RFC 2046IETF RFC 7231IETF RFC 7159IEC 10646IETF RFC 2617IETF RFC 7230