ISO19115 North American Profile CTI Implementation

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ISO-19115 - North American ProfileCTI -
Implementation
Sylvain Vallières Centre for Topographic Informati
on - Sherbrooke 24/01/2008
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Presentation Outline

• Metadata management in the old days !
• Multiple approaches depending of the context
• North American Profile (NAP) Data Producers
• Metadata Utility Usage
• Physical implementation of the NAP at CTI
• Physical model, Database, Transactions, Tools,
  etc.
• New approach for the metadata management
• Conclusion

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Metadata managementin the old days ! (1 of 2)

• Producer Side
• Organizations needs to keep a minimum set of
  information about their products. (Example
  precision, validity date, projection, sources
  used, etc.)
• They also needs an easy access to this
  information for the planning of the different
  works or treatment to be done. (Example
  planimetric correction, update, integration, edge
  match etc.)
• Need for a management system for the metadata
• For the producer, metadata was a very important
  piece of their planning and production task
• Metadata are kept in a in house format

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Metadata managementin the old days ! (2 of 2)

• Client Side
• For the user, metadata was an accessory file !
• How this information (metadata) is structured or
  formatted ?
• In house format
• Dublin Core
• FGDC
• Etc.
• The group that made the largest usage of the
  metadata was the producer that created them !

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North American Profile (NAP) Data Producers (1
of 2)

• New Context !
• For the producer many new products are available
  and there is a need to standardized the way the
  metadata are kept and managed internally
• For the client The metadata are no longer just
  an accessory file but turn to be the major way to
  discover data and get access to it

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North American Profile (NAP) Data Producers (2
of 2)

• ISO-19115 North American Profile !
• For the producer one standardized way to record
  metadata, independently of the product type. A
  common set of tools and standards available to
  manipulate the metadata (example OGC-CSW)
• For the client A unique format describing their
  data and also a convergent way to discover data
  across WEB Portals

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Physical implementationof the NAP at CTI (1 of 2)

• Things to do to realize a physical implementation
  of the NAP
• Transpose the conceptual model of the ISO-19115
  in a physical model
• Implement the physical model in a database
• Validate that all the components cardinality are
  respected according to the standard
• Test with real metadata (example NTDB)
• Create tools that load and extract metadata (WEB
  Services)

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Tools

• Conversion
• Style sheets (XSLT)
• Java programs from Legacy SIB system to NAP XML
  files
• Presentation
• Styles sheets (XSLT) ESRI, GEONETWORK, etc.
• Many visualization and edition tools Example
  ISO Metadata Editor (IME)
• Information Management System ESRI, GEONETWORK
• Etc.

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Conclusion

• Gains !!
• Simplification and standardization of metadata
  approach
• Simplification to introduce a new product (one
  way to do things)
• Same format for management and distribution of
  metadata

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Questions ?
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NAP Physical ModelClose-up (1 of 2)
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NAP Physical Model (2 of 2)
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Project Definition
Needs

• Standard way to produce metadata
• Centralized storage for metadata and point of
  access
• Possibility to update metadata easily
• Manage metadata of raw materials
• Manage version of metadata
• Keep historical metadata
• Manage different language in metadata
• Direct access to the metadata
• Simple and standard way to access the metadata
• Possibility to search and query the database
• Etc

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MIS-NAP System
WEB Services
?
Relational Database
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Time Frame
Excerpt from Treasury Board Information
Management Standard - TBITS-40