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नमस्ते !. Applying ISO/TC 211 Standards in the Development of Data Content Standards. Presented by Julie Binder Maitra At GSDI-7 Bangalore, India February 2004. Applying ISO/TC 211 standards in the development of data content standards. Topics ISO Standards of interest

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नमस्ते !

Applying ISO/TC 211 Standards in the Development of Data Content Standards

Presented by

Julie Binder Maitra

At GSDI-7

Bangalore, India

February 2004


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Applying ISO/TC 211 standards in the development of data content standards

Topics

  • ISO Standards of interest

    • ISO/DIS 19109 Geographic information — Rules for application schema (slides 3-5)

    • ISO 19123 Geographic information — Schema for coverage geometry and functions (slides 6-7)

    • ISO 19115:2003 Geographic information — Metadata (slides 8-10)

  • Application in development of data content standards

    • Introduction to Geospatial One-Stop (slides 11-12)

    • Standards developed through Geospatial One-Stop (slide 13)

    • Application of ISO standards of interest (slides 14-17)

  • Links (slide 18)


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ISO/DIS 19109 Geographic information — Rules for application schema

  • Presents General Feature Model for defining geographic features

  • Provides rules for defining an application schema in Unified Modeling Language (UML)

  • Provides rules for integrating schemas from other ISO/TC 211 standards into an application schema for a complete data structure

  • Pending registration as Final Draft International Standard (FDIS); targeted for publication as an International Standard (IS) in May 2004.


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ISO/DIS 19109 Geographic information — Rules for application schema

Extract of General Feature Model


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ISO/DIS 19109 Geographic information — Rules for application schema

  • ISO/DIS 19109 provides specialized rules for integrating schemas from the following standards in the 19100 series of standards:

  • ISO 19115: 2003, Geographic information — Metadata (including data quality reporting)

  • ISO 19108:2002, Geographic information — Temporal schema

  • ISO 19107:2003, Geographic information — Spatial schema.

  • ISO/DIS 19110, Geographic information — Feature Cataloguing Methodology

  • ISO 19112:2003, Geographic information — Spatial referencing by geographic identifiers


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ISO 19123 Geographic information — Schema for coverage geometry and functions

  • Defines coverage as a “feature that acts as a function to return values from its range for any direct position within its spatiotemporal domain.”

  • Data sets that can be represented as coverages include digital orthoimages, gridded elevation data sets, and thematic classification maps such as soils maps.

  • Coverages are of two types: discrete and continuous

  • Representation of geographic phenomena as discrete features or coverages is not mutually exclusive. A discrete feature or a coverage could represent the same phenomenon.

  • Pending registration as a Draft International Standard (DIS); targeted for publication as IS in May 2005.


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ISO 19123 Geographic information — Schema for coverage geometry and functions

Coverage geometry packages


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ISO 19115:2003 Geographic information — Metadata

The main package in ISO 19115 is Metadata entity set information. It is an aggregate of other packages:

  • Identification information – information to uniquely identify a resource or resources

  • Constraint information – restrictions on access and use of a resource or metadata

  • Data quality information – scope, lineage (information about events or source data used to construct the data), and data quality element information.

  • Maintenance information - scope and frequency of updating data.

  • Spatial representation information - information concerning the mechanisms (grid or vector) used to represent spatial information in a dataset.

  • Reference system information - description of spatial and temporal reference system(s)


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ISO 19115:2003 Geographic information — Metadata (continued)

  • Content information – information about the feature catalogue used and/or information describing the content of a coverage dataset

  • Portrayal catalogue information - information identifying the portrayal catalogue used.

  • Distribution information - information about the distributor of and options for obtaining a resource.

  • Metadata extension information - information about user specified metadata extensions.

  • Application schema information - information about the application schema used to build a dataset.

  • Extent information – metadata elements that describe the spatial and temporal extent of the referring entity.

  • Citation and responsible party information - data types for citing a resource (dataset, feature, source, publication, etc.) and information about the party responsible for a resource.



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Introduction to Geospatial One-Stop

  • E-Government (E-gov) Initiative

    • Component of President’s Management Agenda

    • Geospatial One-Stop is one of 24 E-gov initiatives

  • Objectives

    • Raise the visibility of the strategic value of geographic information and the National Spatial Data Infrastructure (NSDI)

    • Accelerate implementation of the NSDI

    • Increase Federal agency accountability for the stewardship and sharing of geospatial resources

    • Make access to geospatial information faster, easier and less expensive for all levels of government and the general public


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Introduction to Geospatial One-Stop

  • Develop standards for data themes used by many different GIS applications. These themes are known as NSDI Framework themes.

  • Inventory existing Framework data holdings and create metadata to enable data discovery through the NSDI Clearinghouse.

  • Create metadata for planned data acquisition and update of Framework data and serve metadata through the NSDI Clearinghouse to enable opportunities for partnerships.

  • Prototype and deploy enhanced data access and web mapping services for Federal Framework data.

  • Establish a (One-Stop) Federal Portal providing web services to extend the capabilities of the NSDI Clearinghouse Network.


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Standards under Development through Geospatial One-Stop

Rail

Air

Roads

Elevation

Transportation

Transit

Base Standard

Waterways

Cadastral

Geodetic Control

Governmental

Units

Orthoimagery

Hydrography


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Application of ISO 19109

UML Example:

Government Units Boundaries


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Application of ISO 19109

Excerpt from data dictionary for GUB_GovernmentalUnit class


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Application of ISO 19123

Top Level Classes for Digital Orthoimagery


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Application of ISO 19115

  • Standards developed through Geospatial One-Stop will be compliant with ISO 19115

  • Some elements listed as optional in ISO 19115 are mandatory for Geospatial One-Stop

    • examples: Metadata standard name, Metadata standard version, Dataset purpose, Dataset progress, Dataset maintenance and update frequency

  • ISO 19115 elements closely match elements in FGDC Content Standard for Digital Geospatial Metadata, FGDC-STD-001-1998 (version 2.0); therefore, data standards will be compliant with FGDC standard

    • FGDC standard lacks metadata elements for language and character set


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Links

  • ISO Technical Committee 211, Geographic information/Geomatics, www.isotc211.org

  • Geospatial One-Stop, www.geo-one-stop.gov

  • FGDC Content Standard for Digital Geospatial Metadata, FGDC-STD-001-1998 (version 2.0), http://www.fgdc.gov/metadata/contstan.html


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Thank you !

धन्यवाद्

(Ms.) Julie Binder Maitra

जूली मैत्र

Federal Geographic Data Committee (FGDC)

590 National Center

12201 Sunrise Valley Drive

Reston, Virginia 20192

USA

Email: jmaitra@usgs.gov

Phone: +1 703 648 4627

Fax: +1 703 648 5755