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Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China

Metadata Activities with the Permanent Committee on GIS Infrastructure for Asia and the Pacific (PCGIAP). Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China. Contents. About PCGIAP Why We Need Metadata? Practice on Metadata Recent Actions.

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Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China

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  1. Metadata Activities with the Permanent Committee on GIS Infrastructure for Asia and the Pacific (PCGIAP) Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China

  2. Contents • About PCGIAP • Why We Need Metadata? • Practice on Metadata • Recent Actions

  3. 1. About PCGIAP • Regional body for National Spatial Data Infrastructure (NSDI) integration • Operates under the UN Regional Cartographic Conference for Asia and the Pacific • Established in 1995 • Executive board and working groups/taskforce • President: Mr. Peter Holland (Australia) • Vice president: Mr. Komaki Kazuo (Japan) • Secretariat: Mr. Li Weisen (China)

  4. Members Consists of 55 members in Asia and the Pacific Represented by Directorate of national survey and mapping organizations

  5. Aim of PCGIAP To maximize the economic, social and environmental benefits of geographic information by providing a forum for Asia and the Pacific to: • Cooperate in the development of a Regional Spatial Data Infrastructure (RSDI), “APSDI” • Contribute to the development of the Global Spatial Data Infrastructure (GSDI)

  6. 2. Why We Need Metadata • 8th PCGIAP meeting decided implement the prototype of APSDI clearinghouse. • APSDI Clearinghouse is an environment that can facilitate access to geo-spatial data, products and services Discover Resource Evaluate Resource Access Resource Search for Suppliers, Data and Services Display Detailed Metadata

  7. APSDI Clearinghouse – Architecture APSDI Clearinghouse consists of nodes, each clearinghouse node is composed of metadata of geo-spatial data and a software system for serving metadata Clearinghouse Node Datasets Metadata Catalog Server Web Server Metadata is one of the key components Clearinghouse Gateway

  8. 3. Practice on Metadata • Review • PCGIAP Metadata profile • Metadata Edit Tool • Prototype Implementation of APSDI Clearinghouse

  9. Review During 7th PCGIAP Meeting, 2001-4,Tsukuba,Japana • A task force for APSDI data node was formed • Task: promoting the planning and implementation of APSDI spatial data clearinghouse. • Started a pilot project Before 8th PCGIAP Meeting, 2002-4,Brunei Darussalam • Workshop on APSDI Clearinghouse (Hainan Islands, China, Nov. 2001); • PCGIAP Metadata profile drafted; • Guidelines for APSDI Clearinghouse Node Development drafted.

  10. Review Before 9th PCGIAP meeting, 2003-7,Okinawa, Japan • PCGIAP Metadata profile And a metadata entry tool named Mediator complying to this profile is developed and free available. • Guidelines for APSDI Clearinghouse Node Development finished and a reference prototype Implementation of APSDI Clearinghouse provided at http://nfgis.nsdi.gov.cn/apsdi

  11. Review Before 11th PCGIAP Meeting, 2005-5,Bali, Indonesia • Joint Workshop of WG1 and WG2 ,7- 9 September 2004, Chengdu, China • Closed the pilot project and reinstituted the taskforce • ESRI GIS Portal Toolkit Workshop for PCGIAP, 6-8 April, 2005, Hong Kong, China • 13 participants from 6 members (China, Indonesia, Japan, Korea, Nepal, Malaysia) attended 12th PCGIAP & 17th UNRCCAP, Tailand, 2006 Recommends PCGIAP encourage close collaboration between PCGIAP Working Group 2 with ISO/TC211 in the development of an ISO Metadata standard profile for Asia Pacific.

  12. PCGIAP Metadata profile • Fully derived from ISO/DIS 19115 core metadata elements. • Strictly according to the rules for creating a profile in ISO/DIS 19115 clause C6. • No extension; • all mandatory metadata elements in all mandatory sections; • all conditional metadata elements in all mandatory sections, if the dataset meets the condition; • all mandatory metadata elements in all conditional sections, if the dataset meets the condition; • all conditional metadata elements in all conditional sections, if the dataset meets the condition.

  13. Metadata Packages

  14. PCGIAP Metadata profile

  15. PCGIAP Metadata profile They are enough to answer ”what, why when who, where and how” questions about geospatial data. • What- title and description of the data set. • Why- abstract detailing reasons for the data collection and its uses. • When- when the dataset was created and the update cycles if any. • Who- originator, data supplier, and possibly intended audience. • Where- the geographical extent based on latitude / longitude, co-ordinates, geographical names or administrative areas. • How - how it was built and how to access the data.

  16. Metadata Edit Tool Features: • Use treeview to represent the relationship between elements of different level in the hiberarchy structure. • Pop-up menu can be created dynamically according to the adopted schema • You can customize the interface, template, and even add new XML Schema to enable this software to create other XML file according to the specified XML Schema. • A lot of short cuts, pop-up menu enable you edit your document freely. Used to capture metadata complying to the profile

  17. Metadata Edit Tool

  18. Prototype Implementation of APSDI Clearinghouse http://nfgis.nsdi.gov.cn/apsdi

  19. 4. Recent Actions 13th PCGIAP Meeting, June 2007 Seoul, Korea Metadata profile for AP Taskforce Coordinator: Prof. Sang-Ki Hong, Vice Chair of WG2 Tasks Include: • Use what has already been done by PCGIAP in the past • Select latest ISO standards as the basis for this exercise • Look at the profile already developed by the UN (UNGIWG) • Connect the PCGIAP process with the one started by CODI and eventually PCIDEA • Create a draft profile to be discussed among the members of PCGIAP • Look at tools that could support the use of this profile • Provide information and material to the members through the WG 2 web site • Increase awareness through the organization of at least one workshop on metadata in the region • Address the language issue (e.g.: glossary of terms, ISO)

  20. Thanks

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