Incorporation of an ISO 19110 Feature Catalogue in CSW ebRIM

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Incorporation of an ISO 19110 Feature Catalogue
in CSW ebRIM

• Dr Kristin Stock
• Social Change Online, UK
• and
• Centre for Geospatial Science
• University of Nottingham

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Introduction

• Work completed under the EU funded MOTIIVE
  project.
• Added an ISO 19110 Feature Type Catalogue to an
  ebRIM Registry.
• Used the ebRIM Application Profile for CSW (WRS).
• Created an extension package.

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What is Motiive?

• Marine Overlays on Topography for Annex II
  Valuation and Exploitation.
• Examined cost-benefit of using non-proprietary
  standards for data harmonisation.
• Marine domain.
• FTC Registry one part of the larger Motiive
  project.

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Main Partners (FTC)

• Social Change Online
• registry architecture, mapping, information model
  (Kristin Stock, Rob Atkinson).
• EDINA
• implementation of registry (Chris Higgins, Mark
  Small).
• Science and Technology Facilities Council
• content, web services (Andrew Woolf).
• HR Wallingford
• web services, project management (Keiran Millard).

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What is an ISO 19110 Feature Type Catalogue?

• A model for storing Feature Types and their
• Attributes
• Operations
• Associations.
• Provides semantic content for data.
• Includes inheritance between FTs.
• Links attributes and operations.

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Mapping to ebRIM (1)

• Classes from ISO 19110 mapped to specialisations
  of
• ExtrinsicObject
• Association
• RegistryPackage.
• Attributes from ISO 19110 mapped to
• ebRIM attributes where possible or
• ebRIM Classification Schemes or
• ebRIM Slots.
• Relationships from ISO 19110 mapped to
• ebRIM Associations with specified
  AssociationType
• Some required additional attributes.

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Mapping to ebRIM (2)

• Used ebRIM data types.
• The application profile (extension package)
  document contains full details of the mapping
  from each ISO 19110 element.
• Draft http//www.nottingham.ac.uk/lgzwww/contact
  s/staffPages/kristinstock/documents/07-xxx_FTC_Ext
  ension_Package_for_ebRIM_ISOTS_15000-3_Profile_of_
  CSW_2.0.2_v0.1.doc

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Creating the Information Model (1)

• New classes
• Extend the canoncial ObjectType Classification
  Scheme
• New nodes under ExtrinsicObject
• Handles inheritance.
• Instances of existing classes
• Specialisations of non-ExtrinsicObject classes
• For example, ebFC_Catalogue.
• Instances of associations.

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Creating the Information Model (2)

• Attributes that are classifications
• New classification schemes
• Slots
• Used ebRIM slots where possible
• Used WRS slots where possible
• New slots in the Slots ClassificationScheme
• New Association Types
• New types in the AssociationType
  ClassificationScheme.

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Association Types

• Used mainly existing ebRIM association types
  (RelatedTo, EquivalentTo, AffiliatedWith,
  Implements) to represent semantic relationships
• Added some new associations
• between attributes and operations (TriggeredBy,
  Affects, Observes)
• PropertyOf, SubTypeOf
• Recommend the creation of an AssociationType
  hierarchy for spatial relationships.

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Stored Queries

• Predefined queries for the extension package
• Added as Adhoc Queries (ebRIM)
• Some need to be called recursively (e.g
  inheriting and implementing).

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Inheritance

• Project sought to demonstrate how FTs could
  inherit from each other.
• Inherit
• Attributes
• Operations
• Associations.
• Types of inheritance
• is a SubTypeOf
• behaves like Implements (multiple inheritance,
  for common characteristics).

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Abstract Test Suite (1)

• Test cases for each class.
• Combined test modules for subsets of classes.

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Abstract Test Suite (2)
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Extension Package Insert

• Created a WRS Transaction Insert statement to add
  the definitions to the registry
• RegistryPackage
• Classification Nodes for new classes
• Classification Nodes for new association types
• Classification Nodes for new slots
• Stored queries.

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Example Data

• Extension Package includes some example feature
  types.

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Issues/Recommendations (1)

• Model for associations in ISO 19110 very rich and
  expressive, but complicated and difficult to
  understand and implement.

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Issues/Recommendations (2)

• ISO 19110 makes relationships and operations
  dependent on a FT but sometimes it may be
  desirable to model them separately.

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Issues/Recommendations (3)

• ebRIM WRS does not allow slots to be
  constrained to define which slots are allowed for
  a particular class.

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Issues/Recommendations (4)

• Need for hierarchy of spatial association types.

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Questions or Comments?