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

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Presentation on theme: "Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China."— Presentation transcript:

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

2 Contents 1. About PCGIAP 2. Why We Need Metadata? 3. Practice on Metadata 4. 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 Display Detailed Metadata Search for Suppliers, Data and Services 2. Why We Need Metadata 6 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

7 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 Datasets Metadata Web Server Catalog Server Clearinghouse Node Clearinghouse Gateway Metadata is one of the key components

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

9 Review During 7 th PCGIAP Meeting, ,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 8 th PCGIAP Meeting, ,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 9 th PCGIAP meeting, ,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

11 Review Before 11 th PCGIAP Meeting, ,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 12 th PCGIAP & 17 th 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 core metadata elements. Strictly according to the rules for creating a profile in ISO/DIS 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. Fully derived from ISO/DIS core metadata elements. Strictly according to the rules for creating a profile in ISO/DIS 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 No.TitleDefinitionMan./Opt. Information about Metadata 1 Metadata point of contactMD_Metadata.contact > CI_ResponsiblePartyM 2 Metadata date stampMD_Metadata.dateStamp M 3 Metadata languageMD_Metadata.language C 4 Metadata character setMD_Metadata.characterSet C 5 Metadata file identifierMD_Metadata.fileIdentifier O 6 Metadata standard nameMD_Metadata.metadataStandardName O 7 Metadata standard versionMD_Metadata.metadataStandardVersion O Identification Information 8 Dataset titleMD_Metadata > MD_Identification.citation > CI_Citation.title M 9 Abstract describing the datasetMD_Metadata > MD_Identification.abstract M 10 Dataset reference dateMD_Metadata > MD_Identification.citation > CI_Citation > CI_Date.date and CI_Date.dateType M 11 Dataset languageMD_Metadata > MD_DataIdentification.lauguage M 12 Dataset topic categoryMD_Metadata > MD_DataIdentification.topicCategory M 13 Dataset character setMD_Metadata > MD_DataIdentification.characterSet C 14 Geographic location of the datasetMD_Metadata > MD_DataIdentification.geographicBox or MD_DataIdentification.geographicIdentifier C 15 Dataset responsible partyMD_Metadata > MD_Identification.pointOfContact > CI_ResponsibleParty O 16 Spatial resolution of the dataset MD_Metadata > MD_DataIdentification.spatialResolution > MD_Resolution.equivalentScale or MD_Resolution.distance O 17 Additional extent informationMD_Metadata > MD_DataIdentification.extent > EX_Extent O 18 Spatial representation typeMD_Metadata > MD_DataIdentification.spatialRepresentationType O Distribution Information 19 Distribution formatMD_Metadata > MD_Distribution > MD_Distributor > MD_Format.name and MD_Format.version O 20 On-line resourceMD_Metadata > MD_Distribution > MD_DigitalTransferOption.onLine > CI_OnlineResource O Data Quality Information 21 Lineage statementMD_Metadata > DQ_DataQuality > LI_Lineage.statement O Reference System Information 22 Reference systemMD_Metadata > MD_ReferenceSystemO

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

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  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)  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) Tasks Include:

20 Thanks


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