Portrayal requirements IMO Guidelines „GUIDELINES FOR THE HARMONIZED DISPLAY OF NAVIGATION INFORMATION RECEIVED VIA COMMUNICATIONS EQUIPMENT“ “GUIDELINES FOR THE STANDARDIZATION OF USER INTERFACE DESIGN FOR NAVIGATION EQUIPMENT” Portrayal requirements Data Quality Instructions Registry NIPWG S-101 WWNWS_CG S-102 interoperable S-100WG S-104 S-100 based ECDIS S-122 ?????? S-98 S-124 TWLWG S-411 WMO/ JCOMM S-412 Front-of-bridge / ECDIS S-129 NIPWG S-123 S-101 basis for ECS Back-of-bridge / ECS S-125 WWNWS_CG S-126 S-100WG S-101 overlay S-127 ?????? S-128 TWLWG S-103 WMO/ JCOMM S-111 ??? GIS S-121 As of 14 March 2019