Steering Board / WG / ECSS Executive Secretariat / ECSS Member / ECSS TA / ECSS Technical Authority / Abbreviation Meaning CCSDS Consultative Committee / Technical Authority / European Space Agency / Space Data Systems CEN European Committee / Executive Secretariat / European Space Components Coordination ISO International Organization for Standardization KO Kick off NWIP New Work Item Proposal PR Public Review SB Steering Board SDO Standards Development Organization TA Technical Authority TAAR Technical Authority Area Responsible WG Working / ECSS User / /