Current Status of Clearinghouse Activities in GSI

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Current Status ofClearinghouse Activities in GSI

• HOSHINO Yoshihisa and KAWASE Kazushige
• Geographical Survey Institute (GSI)
• Ministry of Land, Infrastructure and Transport
• Japan

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Contents (1)

• Necessity of clearinghouse and necessary
  standards to develop it
• Standard for description of metadata
• Standard for information search and retrieval
• Status of clearinghouse development

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Contents (2)
Contents (2)

• Activities toward development of clearinghouse in
  Japan
• Clearinghouse of GSI
• Clearinghouse for ISCGM
• Future plan

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Necessities of clearinghouse

• Promote geographic information exchange
• Avoid duplicate investment in geographic
  information development
• Materialize the government recognition of its
  importance

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GIS action program2002-2005 of government

• Encourage municipal governments and universities
  to register their nodes to GSI clearinghouse
  gateway by FY 2003
• Standardize technical specification for
  geographic metadata profile of ISO 23950

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Necessary standard for clearinghouse development

• Standard for description of metadata
• ISO standard for metadata
• Japanese standard for Geographic Information
  version 2 (2002)
• Content Standard for Digital Geographic Metadata
  (CSDGM)
• Others

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Development of standard in ISO

• ISO/TC 211 (established in 1994)
• ISO 19100 series concerned with Geographic
  Information
• ISO 19115 Geographic Information Metadata
• terminated voting for DIS on 2002-02-20

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Brief structure of ISO/DIS 19115
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Standard for information search and retrieval

• ISO 239501998
• Information and documentation Information
  retrieval (Z39.50) Application service
  definition and protocol specification
• Also standardized as JIS (Japanese Industrial
  Standard) X 08061999

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Development of standard in Japan

• 1996-1998 completed the 1st edition of national
  GI standard
• 1999- brushing up of the above standard
• 2000 definition of JMP (Japan Metadata Profile,
  based on ISO/CD1 19115)
• 2001 revised as JMP1.1a
• 2002 revised based on ISO/DIS 19115

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Simultaneous search and retrieval through an
HTTP-Z39.50 gateway
User
Q Search relevant data including ??, New
York and Sydney.
Clearinghouse in Japan
Gateway in GSI
A Found 5 items in total.
Search simultaneously
Q ?
Q ?
Q ?
Sydney
Q ?
Found 1 item
Found 2 items
Found 2 items
Not found
Node in other countries
Node in Australia
Node in GSI
Node in U.S.
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Registered nodes in GSI clearinghouse

• 9 nodes of Ministries and Agencies
• 2 nodes of Universities
• 3 nodes of juridical persons
• Other countries nodes

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Clearinghouse for ISCGM

• About 50 metadata for Global Map data have been
  developed
• Laos, Sri Lanka, Nepal, Philippines, Thailand and
  Japan
• Added ISCGM node to the GSDIs clearinghouse
  gateway

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Registration to GSDI gateway
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Future plan

• Technological support to relevant organizations
• Development of terminology, thesaurus, gazetteer
• Useful gateway to lead to resources as one wishes
• Multilingual support to establish international
  clearinghouse by the synonymous list

If you type Tokyo and search, then
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Synonymous setup in clearinghouse software Isite
Rows of the form parent phrase
child1child2multiword child ... childN
White space is ignored at the start and end of
child terms Comments start with
spatialgeospatialgeographicterrestrial
Here are more commentsland useland cover land
characterization land surface ownership
propertywetlandswet landNWIhydric
soilinundatedhydrographystreamriverspringlak
epondaqueductsiphonwellhypsographyelevation
relief topography contour
?? ??
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Thank you very much!
Rainbow view from GSI building