Download - IHO

39
1st MEETING OF THE DIGITAL INFORMATION PORTRAYAL
WORKING GROUP (DIPWG)
Ottawa, Canada, 4-8 May
[held jointly with the 18th TSMAD Meeting]
The 1st meeting of the IHO Digital Information Portrayal Working Group (DIPWG) [Formerly,
CSMWG – Colours & Symbols Maintenance WG] was hosted by the Canadian Hydrographic Service
at Camsell Hall, Ministry of Natural Resources, Ottawa, on 4-8 May 2009. This meeting was held
jointly with the 18th TSMAD Meeting, with Mr. Colby HARMON (USA-NOAA) chairing DIPWG-1
and Mr. GREENSLADE (UKHO) chairing TSMAD-18. The 40 attendees from HOs, the private sector
and the IHB were welcomed by the Canadian Hydrographer, Dr. NARAYANAN.
A progress report was presented on the development, under contract to the IHB, of the S-100 portrayal
model. Based on ISO 19117, the model is populated in an XML format from the current IHO
Presentation Library. This will result in the S-100 portrayal register. The meeting endorsed the work
accomplished to date and agreed that contract work be continued so as to include S-101 portrayal.
Translation into XML of the existing Conditional Symbology Procedures (CSPs), carried out under
contract to USA-NOAA, was also presented.
Symbology for AIS-equipped Aids to Navigation (AtoNs) and virtual AIS was discussed, based on
IALA and IMO/MSC86 papers. The meeting acknowledged that IHB would suggest at MSC86 that
the usefulness and applications of virtual AIS be clarified, and that any charting implication be
referred to the IHO.
A draft revised version of S-52, incorporating all components of the existing S-52 into one single
document, also taking into consideration the latest issues of the IMO performance standards for
ECDIS and the IEC ECDIS test standard (IEC 61174), was presented and approved by the meeting.
Following a proposal from Sweden, there was discussion on text placement on ECDIS, and on
whether clutter reduction / improved legibility can better be achieved through encoding cartographic
attributes, or additional portrayal rules. Another Swedish proposal relating to ENC cell loading
strategy depending on display scale and to be implemented when zooming in/out, was agreed upon in
principle.
A “deferred” amendment of the current IHO Presentation Library for ECDIS, i.e. Edition 3.4 –
January 2008, containing corrections to minor deficiencies identified by DIPWG and TSMAD, was
discussed and agreed.
7th MEETING OF THE IHO DATA PROTECTION SCHEME WORKING GROUP (DPSWG)
IHB, Monaco, 31 March - 1 April
The IHO Data Protection Scheme Working Group (DPSWG), which is in charge of developing and
maintaining the IHO standard S-63 - IHO Data Protection Scheme, held its 7th meeting at the IHB,
Monaco on 31 March and 1 April 2009. The meeting was chaired by Mr. PRITCHARD (UK) and was
attended by 11 representatives from the IHO and the private sector, including two participants via
telephone link.
The meeting aimed at reviewing the implementation of S-63 edition 1.1 since its publication in early
2008 and at identifying the problems encountered by S-63 users, whether as Data Servers or OEMs.
The IHB reported that, as of March 2009, 119 OEMs and 22 Data Servers had received S-63
accreditation from the IHB acting as S-63 Scheme Administrator. Most of the OEMs are ECDIS/ECS
manufacturers and/or software developers. Data Servers include private companies, HOs and RENCs.
It was realized that not all S-63 users had implemented edition 1.1, i.e. a number of them were still
using the previous edition 1.0 which created compatibility problems between Data Servers and OEMs