ELECTRONIC NAVIGATIONAL CHARTS (ENCs)

INTERNATIONAL HYDROGRAPHIC ORGANIZATION

ELECTRONIC NAVIGATIONAL CHARTS (ENCs)

"PRODUCTION, MAINTENANCE AND DISTRIBUTION GUIDANCE"

A guide to the requirements and processes necessary to produce, maintain and distribute ENCs

Publication S-65

Edition 2.1.0, May 2017

Published by the International Hydrographic Organization

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CONTENTS

Introduction ........................................................................................ 1 What is an ENC? ..................................................................................3 Hydrographic Office Responsibilities For Producing ENCs ...................4 ENC Production and Distribution Guidance...........................................7 STAGE 1 ? Design Production Process ...............................................7

STEP 1 ? Production Method ............................................................... 7 STEP 2 ? A Quality System ................................................................. 8 STAGE 2 ? Define ENC Production Requirement .................................9 STEP 1 ? Identify Requirements .......................................................... 9 STEP 2 ? Produce Production Plan........................................................ 9 STAGE 3 ? Acquire Production System .............................................13 STEP 1 ? Identify Requirement.......................................................... 13 STEP 2 ? Invitation to Tender ........................................................... 13 STEP 3 ? System Installation and Testing ........................................... 13 STEP 4 ? Live Running ..................................................................... 13 STAGE 4 ? Obtain and Train Staff.....................................................14 STEP 1 ? Staffing Levels ................................................................... 14 STEP 2 ? Determine Skill Levels ........................................................ 14 STEP 3 ? Identify Training Provider .................................................... 15 STAGE 5 ? Prepare Specifications for Data Capture ......................... 16 STEP 1 ? Published Specifications ...................................................... 16 STEP 2 ? Data Capture and Product Specifications ............................... 16 STAGE 6 ? Capture Data for New Cells .............................................18 STEP 1 ? Optionally, place external capture contract ............................ 18 STEP 2 ? Capture data ..................................................................... 18 STAGE 7 ? Edge Match Data ............................................................. 19 STEP 1 ?National data...................................................................... 19 STEP 2 ? Between Nations ................................................................ 19 STAGE 8 ? Verify and Validate Data .................................................21 STEP 1 ? Production Systems and Procedures ..................................... 21 STEP 2 ? Verification........................................................................ 21 STEP 3 ? Validation.......................................................................... 21

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STAGE 9 ? Maintain ENCs .................................................................22 STEP 1 ? Establish mechanism for ENC updating ................................. 22 STEP 2 ? Notice to Mariners (Updates) ............................................... 22 STEP 3 ? New Editions or Notice to Mariners (NM) Blocks ..................... 22 STEP 4 ? ENC Re-issues ................................................................... 22 STEP 5 ? Distribution of ENC Data ..................................................... 23

STAGE 10 ? Distribute ENC Data ........................................................ 24 STEP 1 ? Identify Distribution Mechanism ........................................... 24 STEP 2 ? Sign Agreement ................................................................. 26 STEP 3 ? Distribution Format ............................................................ 26

Glossary of Terms .............................................................................29

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Introduction

Purpose and Scope

This document provides a high level guide to the production, maintenance and distribution of Electronic Navigational Charts (ENCs).

It offers a framework to inform hydrographic offices of the processes and requirements necessary to produce, maintain and distribute ENCs.

It provides references to documentation which can support each stage of the process. It is not intended to serve as a technical reference manual but to enable hydrographic offices to gain an overview of ENC production processes, and the requirements and procedures that need to be in place to set up an ENC production facility.

References

Standards and Conventions

A

IHO S-52, "Specifications for Chart Content and Display Aspects of ECDIS"

B

IHO S-57, "IHO Transfer Standard for Digital Hydrographic Data"

C

IHO S-58, "ENC Validation Checks"

D

IHO S-62, "List of Data Producer Codes"

E

IHO S-63, "IHO Data Protection Scheme"

F

IHO M-3, "Resolutions of the IHO", Resolution 1/1997 (as

amended), Principles of the Worldwide Electronic Navigational Chart

Database (WEND)

G

IHO S-4, "Regulations of the IHO for International (INT) Charts and

Chart Specifications of the IHO"

H

IHO S-11 Part A, Section 200, "Guidance on the Preparation and

Maintenance of ENC Schemes"

I

IHO S-8, FIG/IHO/ICA "Standards of Competence for Nautical

Cartographers"

J

IMO Resolutions MSC.232 (82) and A.817 (19), as amended by

MSC.64 (67) and MSC.86 (70), "Performance Standards for

Electronic Chart Display and Information Systems (ECDIS)"

K

International Convention for the Safety of Life at Sea (SOLAS) (as

amended)

L

IHO S-66, "Facts about Electronic Charts and Carriage

Requirements"

M

IHO C-47, "Training Courses in Hydrography and Nautical

Cartography

Indicative Documentation

N

UKHO ENC Product Specification

O

UKHO ENC Data Capture Specification

P

UKHO ENC Training Documentation and Job Descriptions

1

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