GLIS Naar een uniform Geo Data Model voor perceelsregistratie

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GLISNaar een uniform Geo Data Model voor
perceelsregistratie
May 12, 2005 Mirjam Stadelmann, ESRI Stef de
Ridder, GISsat
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Agenda

• Introduction
• Preliminary GLIS Data Model for a National
  Cadastre In Suriname

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Inleiding
Waarom GIS?

• Functionele groepen
• Grafische ondersteuning van het proces
  Landregistratie en Mutaties van Land Records
• Kwaliteitscontrole op de gegevens afkomstig van
  landmeters
• Opzetten van GIS Intranet en Internet services
• Leveren van kaartproducten
• Standaardisatie van data-uitwisselingsformaten
  door data-modellering
• RD activiteiten, uitvoeren van Ruimtelijke
  analyses

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Inleiding
GIS implementatieniveaus

• Client
• Business Logic
• Database

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Inleiding
GIS activiteitsgroepen

• Editeren
• Raadplegen / Analyseren
• Rapporteren
• Data distributie
• Behandelen van queries
• Opslag
• Beveiliging
• Kwaliteitsbewaking via Rulebase

• Client
• Business Logic
• Database

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Inleiding
GIS Onderdelen

• Desktop GIS met custom toolbars
• Desktop GIS Viewers
• Internet/Intranet Portals (al dan niet beveiligd)
• Spatial Data Engine voor opslag in RDBMS
• Internet Map Server technologie
• Data Model in RDBMS
• Topologische relaties tussen objecten
• User Management Tools

• Client
• Business Logic
• Database

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Inleiding
GIS Data Model

• Bewaken van data-integriteit
• User management
• Vastleggen van standaarden voor meta data
• Vastleggen van standaarden voor uniforme
  data-uitwisseling
• Vastleggen van geodetische standaarden
• Basis leggen voor verdere standaardisatie van
  geo-data

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GLIS Data ModelDiscussion Points

• Data Modeling Goals, Approach
• Primary Components of the Model
• Spatial Information Themes
• Integration of Land and Mortgage Registry with
  Spatial Information
• Open Issues
• Questions, Discussion

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Data Modeling GoalsData Modeling Approach
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Data Modeling Goals

• Develop National GIS Data Model for Land
  Management in Suriname
• Address GLIS business functions
• Land Registration of Public and Private Land
• Land Use Management
• Support long-term goals for national standards,
  geospatial infrastructure
• Consider GLIS workflows for Land and Mortgage
  Registry

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Data Modeling Approach

• Start with current land and mortgage registry
  data model
• Build on an existing GIS parcel data model
• ArcGIS Parcel Data Model
• Standards Based ( US Federal Geodetic Data
  Committee Cadastral Content Standard)
• Incorporates GIS and RDBMS Concept
• Adapt to needs in Suriname
• Modify GIS themes, attributes
• Integrate land and mortgage registry information

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The ArcGIS Standard Parcel Model

• Implements the Federal Geographic Data Committee
  (FGDC) Cadastral Content Standard
• Collaboration of government agencies, private
  industry, academic expertise
• Models parcel data as eight common themes
• Includes attributes, domains, relationships
• Addresses spatial relationships, topologies

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Current Data Model for Land / Mortgage Registry
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Thematic Content of the Standard Parcel Model

• Administrative Areas
• Parcel Related Uses
• Owner Parcels
• Rights and Interests
• Tax Parcels
• Corners
• Boundaries
• Parcel Framework
• Digital Orthophotos

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Thematic Content of Land and Mortgage Registry

• Requestors and Beneficiaries
• Requests (Public and Private)
• Notifications (to/from agencies)
• Parcels
• Owners
• Deeds
• Mortgages

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Primary Components of the Model for Suriname
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Initial DiscussionKey Business Rules, Decisions
with Effect on the Model

• Determination of Primary GIS Themes to be
  Retained for the Model
• Definition of a Unique Identifier for Parcels
• Specifications on how parcel (survey) information
  will be maintained in the GIS

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Relevant GIS Themes to Retain

• Administrative Areas
• Related Uses (Restrictions and Zoning)
• Corners and Boundaries
• Owner Parcels
• Parcel Framework (Conveyance)
• Aerial Orthophotos

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Unique Parcel Identifier

• Will be the Parcel Primary Key
• Needed to Unambiguously identify a Parcel and
  information related to it
• Basis for referential integrity in the database
• Proposed method based on internal research
• Proposed method is based on location
• Needs additional stress testing
• Uses neighborhoods and grids
• Allows allocation of a point to a parcel for
  point based geocoding

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Construction of the Primary Key

• Define grid for Suriname 10 X 10 Meters
• Overlay neighborhoods on grid
• Overlay parcel on grid and neighborhoods
• Parcel ID is grid corner location inside parcel
• Identify parcel using combination of
  neighborhood code, and coordinates
• 4 letter neighborhood code (e.g. LATR for Latour)

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Example

• Common Case
• 1 grid corner in parcel
• Neighborhood Code LATR
• Coordinates 555000, 640900
• ID LATR555000640900

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Business Rules and Exceptions

• Multiple Grid Corners
• Choose the one closest to the Centroid of the
  Parcel

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Business Rules and Exceptions

• Parcel in Multiple Neighborhoods
• Assign the Neighborhood Code with majority area
  of the parcel
• In this example LATR
• Parcel ID based on grid coordinate closest to
  Centroid

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Business Rules and Exceptions

• Potential Non-Uniqueness with another ID
• Assign the Neighborhood Code with majority area
  of the parcel
• In this example LATR
• Add letter B to Parcel Number
• ID LATR555000640900A
• ID LATR555000640900B

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Specifications for Collection, Validation,
Maintenance or Parcel Coordinates

• Parcel boundaries will be based on accurate
  coordinates
• Surveyors will provide corner coordinates and
  sketches for request processing
• MI GLIS validation, data entry
• Corner and boundary line information will include
  metadata such as origin, quality of information
  
• Supports future quality improvements during data
  maintenance

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Further Discussion of Primary GIS Themes

• Administrative Areas
• Related Uses (Restrictions and Zoning)
• Corners and Boundaries
• Owner Parcels
• Parcel Framework (Conveyance)
• Aerial Orthophotos

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Administrative Areas

• 2 Polygon Feature Classes
• Administrative Districts
• Districts
• Resorts
• Neighborhoods
• Map Indexes

Polygon Features
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Corners and Boundaries

• Parcels are Polygons
• Corner and Boundary Feature Classes are Points
  and Lines
• Coincident with Parcel Polygons
• Corners are separate to maintain additional
  information
• Lines are separate to support line annotation,
  labeling on maps
• Additional information stored includes
• Accuracy, quality
• Origin
• Survey type
• Etc.

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Corners and Boundaries
Point Features
Line Features
Related Tables
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Owner Parcels

• Current Parcels
• Historical Parcels
• Date Attributes for History
• Parent ID attributes for Lineage
• Topology relationships to manage feature
  coincidence with Corners and Boundaries
• Parcel outlines are coincident with Boundaries
• Corners are end points of boundaries

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Owner Parcels
Polygon Features
Related Tables
Current
History
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Parcel Framework, Conveyance

• Simultaneous Conveyance
• Subdivisions
• Surveys
• Additional Structure for Parcel Management
• Manage a collection of parcels and track them to
  a common subdivision
• Parcels are nested in the Conveyance
• Common Scenario
• Subdivision of large parcel into smaller ones for
  future sale
• Submits the subdivision for approval, parcel
  creation and recording

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For Later Discussion

• Two additional themes left for later discussion
• Parcel Related Uses
• Land Use Zoning
• Addresses
• Rights and Restrictions
• Storage of Aerial Orthophotos

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Integration of GIS, Parcel Registry Themes
GIS Parcel Themes
Land Registry Themes

• Requestors and Beneficiaries
• Requests (Public and Private)
• Notifications (to/from agencies)
• Parcels
• Owners
• Deeds
• Mortgages

• Administrative Areas
• Related Uses (Restrictions and Zoning)
• Corners and Boundaries
• Owner Parcels
• Parcel Framework (Conveyance)
• Aerial Orthophotos

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Basic Land Registration Work Flow for Public and
Private Land
Private Land
Notary Review Create Deed
Application Land Transfer Sale
MI GLIS Update Maps Register Deed
Public Land
Application New Land Transfer of Land
Domeinbedrijf Review Approval Process
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GIS Parcel and Land Registry Model Relationships
and Data Flow
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Questions, Discussion