Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China.
Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China
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Transcript of Xu ZHOU Liaison Representative from PCGIAP to ISO/TC 211 National Geomatics Center of China
Xu ZHOULiaison Representative from PCGIAP to
ISO/TC 211National Geomatics Center of China
Contents
1.About PCGIAP2.Why We Need Metadata?3.Practice on Metadata4.Recent Actions
1. About PCGIAPRegional 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)
Members
Consists of 55 members in Asia and the Pacific Represented by Directorate of national survey and mapping organizations
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)
Display Detailed Metadata
Search for Suppliers, Data
and Services
2. Why We Need Metadata
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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
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APSDI Clearinghouse – ArchitectureAPSDI 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 GatewayMetadata is one of the
key components
3. Practice on Metadata
Review PCGIAP Metadata profile Metadata Edit Tool Prototype Implementation
of APSDI Clearinghouse
ReviewDuring 7th PCGIAP Meeting, 2001-4,Tsukuba,Japana A task force for APSDI data node was formedTask: 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.
ReviewBefore 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
ReviewBefore 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, China13 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.
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.
Metadata Packages
Metadata entity set information
Distribution information
Data quality information
Identification information
Reference system information
Citation and responsible party information
Extent Information
PCGIAP Metadata profileNo. Title Definition Man./Opt.
Information about Metadata
1 Metadata point of contact MD_Metadata.contact > CI_ResponsibleParty M
2 Metadata date stamp MD_Metadata.dateStamp M
3 Metadata language MD_Metadata.language C
4 Metadata character set MD_Metadata.characterSet C
5 Metadata file identifier MD_Metadata.fileIdentifier O
6 Metadata standard name MD_Metadata.metadataStandardName O
7 Metadata standard version MD_Metadata.metadataStandardVersion O
Identification Information
8 Dataset title MD_Metadata > MD_Identification.citation > CI_Citation.title M
9 Abstract describing the dataset MD_Metadata > MD_Identification.abstract M
10 Dataset reference date MD_Metadata > MD_Identification.citation > CI_Citation > CI_Date.date and CI_Date.dateType M
11 Dataset language MD_Metadata > MD_DataIdentification.lauguage M
12 Dataset topic category MD_Metadata > MD_DataIdentification.topicCategory M
13 Dataset character set MD_Metadata > MD_DataIdentification.characterSet C
14 Geographic location of the dataset MD_Metadata > MD_DataIdentification.geographicBox or MD_DataIdentification.geographicIdentifier C
15 Dataset responsible party MD_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 information MD_Metadata > MD_DataIdentification.extent > EX_Extent O
18 Spatial representation type MD_Metadata > MD_DataIdentification.spatialRepresentationType O
Distribution Information
19 Distribution format MD_Metadata > MD_Distribution > MD_Distributor > MD_Format.name and MD_Format.version O
20 On-line resource MD_Metadata > MD_Distribution > MD_DigitalTransferOption.onLine > CI_OnlineResource O
Data Quality Information
21 Lineage statement MD_Metadata > DQ_DataQuality > LI_Lineage.statement O
Reference System Information
22 Reference system MD_Metadata > MD_ReferenceSystem O
PCGIAP Metadata profileThey 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.
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
Metadata Edit Tool
Prototype Implementation of APSDI Clearinghouse
http://nfgis.nsdi.gov.cn/apsdi
4. Recent Actions13th PCGIAP Meeting, June 2007 Seoul, KoreaMetadata profile for AP TaskforceCoordinator: 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:
Thanks