WG9 Report

ISO/TC211 Plenary Meeting

Orlando, USA

2006-05-25

WG9 Information Management 6(+1) Work Items (1 IS, 1 IS/TS, 3 in TC, 1(+1) (Stage 0) in WG• 6709 Standard representation of geographic point location by coordin

ates • 19127 Geodetic codes and parameters • 19131 Data product specification• 19135 Procedures for registration of geographical information items• 19138 Data quality measures: ISO 19135:2005• 19113 & 19115 Amendments, `Quality Harmonization’• (19145 Registry of representations of geographic point location)

• Convenor: Hiroshi Imai • WG9 Meetings

– 1st Bangkok (2002-05), 2nd Gyeongju (2002-11),3rd Thun (2003-05), 4th Berlin (2003-10),5th Kuala Lumpur (2004-05), 6th Pallanza (2004-10),7th Stockholm (2005-06) 8th Montreal (2005-09)

– 9th Orlando, 2006-05-22, 11:00-12:30

WG9 Meeting in Orland

• Time: 2006-05-22, 11:00-12:30• Participants:

Sorem Riff Alexandersen, Jean Brodeur, Mohammed Dalbouh, Marie-Pierre Escher, Iain Greenway, Koichi Hirata, Sang-Ki Hong, Hiroshi Imai, Gerhard Joss, Ralf Lindren, Roger Lott, Rees W. Plews, Barry Reff, Chanin Tinnachote

• WG9-related meeting here: WI 19145 Meeting• Other WG9-related WIs,

6709, 19131, 19138, 19113-19115 Amd.are also discussed in this WG9 meeting– Discussion results were given in the following slides.

ISO, ISO/TS deliverables

ISO/TS 19127:2005 Geodetic codes and parameters

• Project Leader: Julie Binder Maitra• `Registration Authority’ is being discussed by TC

ISO 19135:2005 Procedures for registration of geographical information items

• Project Leader: Charles Roswell

ISO/DIS deliverables (& comments)ISO/DIS 19131 Data product specification• EC Editor: Robert Walker

• Result of Voting on DIS (N1930, 2005-11-07)– 23 Yes, 1 No (US)– Comments:

CA(14), CN(5), DE(1), JP(2), NO(7), ZA(6), SE(6), US(65), DGIWG(8)

– Issues raised in the comments:• UML models > Tables (some suppressed)

⇒ Need of updating UML models (need help of HMMG)• Distinction? between coverage and other feature data, …

• Status: EC Editor/Chair made proposals via e-mails and met members in Orlando for figuring out the main issues

• Action: EC Editor/Chair, with the help of EC Members and HMMG, will make a final draft within June(otherwise, risk of cancellation by ISO CS by 5-year rule…)

ISO/DTS DelivarablesISO/DTS19138 Data Quality Measures Project• Leader: Gerhard Joos• Editor: Erik Stenborg• Target: Technical Specification, TS

• Current status:– Result of DTS Vote, N1769

(16 Yes, 2 No (US, UK), 2 Abstain, 2 not voted)– Editing Committee Meeting: 2005-06-07/08, Stockholm– Text for final DTS (N1934, 2005-11-30)– Review of Final DTS Draft (N1947, 2006-01-25)

• 3 MBs expressed their consent (CA, IT, ES)• Comments from two MBs (DE (8), JP(7)) , TMG(1)

• Comments have been incorporated by EC Editor, and a draft for DIS will be sent to ISO CS

ISO/CD DeliverablesCD 6709 Standard representation of geogra

phic point location by coordinates • Project Leader: Kevin Kirby• Editor: Larry Hothem• Target: IS (revision of ISO 6709:1983)• Result of CD Vote: N1821(14 Yes, 3 No (DK, JP, KR))• Editing Committee Meeting: 2005-06-06/08, Stockholm

• Result of review of text for final CD (N1948, 2006-02-02)– Two members expressed their consent (IT, ES)– One member expressed their consent with comments (CN(9))– Other comments (FIG(13), OGC(1), TMG(1))

• EC Editor met members of EC, HMMG, MBs giving comments in Orlando to clarify the issues.

• Observations to comments have been made.A text for DIS will be sent to the Secretariat in June

WI 19113 & 19115 Amendments(Quality Harmonization Project)

• Project Leader: Erik Stenborg• Editor: David Danko• Type: Preliminary Work (Stage 0 Project) • NWI ballot result in N1819 (2005-05-13)

– Revised result of voting on N 1770 NWIP: Amendment to ISO 19113:2002 Quality Principles and ISO 19115:2003 Metadata

• 19 Yes, 2 No– Approved as a Stage 0 Project (Resolution 320) in Stockholm– 24 Experts nominated by MBs + 10 more

• Meetings:– Adhoc meeting in Stockholm, 2005-06– 1st meeting in Montreal, 2005-09-12/13

• Made a quite ambitious plan for a possible meeting in Orlando

• Faced with several difficulties such as collecting inputs, etc.

WG9 discussed this Quality Harmonization here Summary of the PT Meeting in Montreal• Make a review summary to clarify what are the problems

– Made an outline of the report and a schedule (too ambitious…)

• Possible NWIP(s) when the problems are identified

WG9 Meeting in Orlando• Ralf Lindgren reported the status and discussions were made.Conlusions of this meeting:• Project Leader will make the first draft• The draft will be sent to the members for comments• Possible recommendations may be

– Revise ISO 19113:2002 for 5-year revision process– Search for possible coordination with related documents such as IS

O 19114:2003 (Cor 1:2005) and ISO/TS 19138:2006(?), etc.

WI 19145 Registry of representations of geographic point location

• Project Leader: Jean Brodeur• Type: Preliminary Work (Stage 0 Project)

• NWIP (N1942, 2006-01-10)• Result of Voting for the NWIP (N1983, 2006-04-19)

– 15 Yes, 1 No, 3 Abstain– 10 nominated experts from 9 MBs

• 1st Project Team Meeting: Orlando, 2006-05-22/23– 19 participants from 12 NBs and liaisons

WI 19145 Scope• Out of scope

– Definition of encoding rules and formats– Coordinate reference systems (CRS) and associated

issues (e.g. units)

• In the scope– Explore and investigate the relevance of a registry of

formats (e.g. physical data representations) or profiles for the purpose interoperability of representation of geographic point location by coordinates

– Explore the content of such a registry and requirements about its structure

– Catalogue potential formats and format profiles that are eventual candidates for registration

– Explore potential registry owners and managers

Some Existing Encodings (string or binary)• ISO 6709:1983 ⇒ ISO 6709:2007(?) • DCMI Point encoding scheme,• GeoVRML,• Compact text encoding of latitude/longitude coordinates

(Microsoft) or Natural Area Coding System,• ISO 8211,• GML Point Profile (and any other different flavour of XML),• SHAPE (ESRI),• DGN,• VPF,• DXF,• MID/MIF,• E00,• DLG,• etc.

WI 19145

LandXML

WI 19145

KML (Google Earth)

WI 19145

GeoVRML

WI 19145

DCMI Point Encoding Scheme

WI 19145

Compact text encoding of latitude/longitude coordinates (Microsoft)

& Natural Area Coding System

• longitude: -127.8202

• latitude: 3.436086111

• NAC Universal Address: 4BFGJ HK5DC

• Microsoft's code: hk5dc4bfgj

WI 19145

WI 19145

XDK, Danemark

WI 19145

GML (Geography Markup Language)--- GML Point profile ---

WI 19145

Outline of Review Summary (1st plan)1. Introduction

– Background– Purpose and justification– Overview

2. Scope3. References4. Terms and definitions5. Review

1. How organizations handle the use of many representations of GPL2. Static vs. dynamic data conversion and registry (difference)3. Contribution to geographic information interoperability4. Review of encoding mechanisms (popularity, basis)5. Preliminary content and structure of the registry6. Relationships of the registry with other ISO documents (e.g. 6709)7. Business case for registration authority

6. Conclusion and recommendations7. Annexes? WI 19145

WI 19145 Timetable

• Contributions (mid August 2006)

• First draft (mid October 2006)⇒PT members

• PT meeting in Riyadh to discuss the draft

• Final draft mid December 2006

• Review by WG9 by the end of January 2007

• Draft Review Summary mid February 2007

Preliminary content and structure of the registry• Unique identifier• Name• Version (version number, dates, amendment number …)• Status of the geographic representation format• Data elements and their types• Structure of the data (order of items, type of separator, tags, etc.)• Description of the format (another possible way is to include the

description as part of the registry)– Physical data model?– Type of physical data model (e.g. XML Schema?) Profile (e.g. GML

point profile)?– Binary vs. text?– Textual description (Characterstring or a Reference to a specification

(e.g. CI_Citation))– Compressed or not– “Parameters for conversion”

• Compression mechanism,– Name– Version– Algorithm?

• Proprietary format or not (patented or not?)

(To be refined)

WI 19145