Cadastre and SDI

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Vermessungs- und Katasterbehörde Hannover
Athens, May 2003
Peter Creuzer
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• Content
• Introduction
• Land Administration Data in a changing
  environment
• Establishment of a Spatial Data Infrastructure
  (SDI)
• Case Study Lower Saxony
• Conclusions

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Land Administration Data in a
Changing Environment
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Integration of Cadastre and Topographic Mapping
Spatial Data Infrastructure
Real Estate Cadastre
Influencing Trends
PPP
E-Government
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Spatial Data Infrastructure (SDI)
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Spatial Data Infrastructure includes
all technological, political and institutional
measures making sure, that methods, data,
technologies, standards, financial and human
resources needed for capture and use of
geoinformation are available according to
business and economical requirements.
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Spatial Data Infrastructure
Initial situation in Germany Decision on Use of
Geoinformation adopted by German Parliament in
2001 Federal activities IMAGI Cooperation
Federal and State authorities Solutions at state
level Metadata, Geodata portals, Pilot
projects NRW MICUS- Market studies,
GEOBASIS-NRW, GDI-NRW Policy Document of AdV
(10/2001) Strategies and action for establishment
of an SDI for Germany Decision of the Standing
Conference of the Ministers and Senators of the
Interior (IMK 01/2002)
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Spatial Data Infrastructure (2)
Components
Aim Acquisition, evaluation and use of GI for
customers and users in public administrative
bodies, for commercial and non-commercial areas,
in research and for the citizen

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New Task?
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New Requirements
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E-Government
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Electronic Government includes
Handling of business processes related
to government and administration by means of IT
via electronic media
Information
Communication
Transaction
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E-Government (II)

• Aims
• Customer Focus
• Multimedia-Base Lower Saxony
• Economicalness of administration
• E-Government is
• Further development of IT
• Reform of administration

• Technical Framework
• Internet-Portal
• Electronic signature
• E-Payment procedures
• Document management
• Long-time archive

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Integration of Topographic and Cadastre Mapping
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...GIS are becoming very useful tools for
handling information on the current land use as
well as for monitoring changes in land use.
Thus such information
systems should combine data from different
sources, including topographic maps and satellite
images.
UNECE Social and Economic Benefits of Good Land
Administration, September 1998
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• Paradigm Shift
• Economicalness
• ð Much of the information redundant in register
  and map
• ð Multiple acquisition and maintenance of
  information
• Customer Requirements
• ð Users expect geoinformation usable in a
  flexible manner and integrated service
  delivery
• Nation-wide Uniformity of Datasets
• ð Increasing importance (also in a European
  context)
• ð Decision of the German Bundestag on the use
  of GI
• ð Harmonisation at state borders

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Since 1997 Concept of AdV for Modelling of
Geoinformation of the Official Surveying and
Mapping
Integration of Cadastre Map and Register (ALK and
ALB) Harmonisation of Cadastre and Topographic
Mapping (ALKIS - ATKIS)
Cornerstones Integrated maintenance of graphic
data and descriptive data Constant object
view Data maintenance without redundancies User
profile according to data protection
legislation Focus on customers Economicalness of
the concept
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Target System
Uniform geospatial base datasets for Germany Only
one data model for Spatial Reference System
? AFIS Real Estate Cadastre ?
ALKIS Topography ? ATKIS 3A - base
schema, one 3A - application schema NAS
standard-based data exchange format Co-ordinated
data capture, maintenance andsupply/delivery
Geospatial Base Data Information Management
(GIM) Implementation (stage-wise realisation)
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Harmonisation of Object Catalogues

• Only one hierarchical structure for ALKIS, ATKIS
  and AFIS
• Identical object view for
• Land / current land use
• Buildings and structural facilities
• Topography
• Topographic names
• Determinings in acc. with public law
• Administrative units
• Objects for presentation
• 89 common objects in ALKIS and ATKIS
• 21 special ATKIS-objects
• 44 special ALKIS-objects
• 6 special AFIS-objects

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Public-Private Partnership in Land
Administration
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Transfer of Government Functions to Private Sector
Change of land ownership structures
Streamlining of institutional arrangements for
land administration Establishment of Business
Models
Institutional and economic structures
Development of land markets
Statutory tasks combined with services for the
market
Synergetic effects by involvement of the private
sector
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Private-Public Partnership Chance
Delivery of quality land management services to
the public as common goal
Emerging Markets
Technical Cooperation
Land Registration Services
Real Estate Markets
Valuation
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UNECE-WPLA-Guidelines On PPP Schedule
Task force on PPP - 1st meeting in
Geneva Questionnaire on PPP already
distributed Elaboration of comprehensive
guidelines Involvement of private
sector Guidelines to be presented at WPLA
Workshop Spring 2004 - Yerevan/Armenia Approval
and publishing as UNECE-document in due course
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Case Study Lower Saxony
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• Decision of the Lower Saxon Parliament
• December 2002
• Use of Geoinformation in Lower Saxony
• Importance of geoinformation
• Thorough strategy for state, regions and
  municipalities
• Development of geoinformation and SDI
• Transfer to business
• Easier access to geodata

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The New Legal Basis
Lower Saxon Law On Official Surveying
(NVermG)
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Reasons for Revision of the Law
Information Efficiency Public Access to
Data Monopoly-Sharing Georeference Transparency De
regulation
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Guarantee for
Maintenance in spatial information systems
Base Function
Requirement for state administration to take over
geodetic reference and content of data
Legal Function 2 GBO 11 BodSchätzG
Necessity to identify real estate and its
boundaries
Updating and corrections compulsory
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NVermG - Major Changes
1. Public

• Access to real estate cadastre for everybody
• - normally unrestricted access to ALK and ALB
  new
• - but restricted access to ownership
  information
• Use of
• - Data of the official surveying and mapping
• - Standard presentations
  new
• Regulations for
• - Data supply
  new
• - Commercial use
  new
• - Reproduction
  new

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• Data to be maintained by all AdV-member states
  in the future
• Uniform datasets concerning structure and content
  for users requiring state-overlapping datasets
• Harmonisation of ALKIS, ATKIS and AFIS

Standard Presentations for Cadastre with
uniform content and layout. gt consist of
agreed core data ( x) gt as described in the
ALKIS-catalogue for presentations gt part of
the UML-model
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Uniform Geospatial Base Data
Uniform Geodetic Reference System - Position,
Height, Gravity -
Substantial Structural Facilities
without buildings and dwellings
Land Use Special Vegetation
ALKIS
Terrain Contours
Land Parcels
Information on Ownership
Buildings and Dwellings
Public Restrictions, Encumbrances or
other features
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Stage-wise Implementation
Migration
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Measures I
- Structured names/addresses in ALB - Consistency
of ALK and ALB - Control Point Database
(Deletion of double numberings and multiple
coordinates) - Check of OBAK-conformity with LKP
540 - Check of area coverage in ALK - Elimination
of local control-point-systems/ Introduction of
LS 100 coordinates
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ALKIS - Concept for Migration NI (1)
Measures II
Addition of new classes of buildings Addition
of new classes of land use Capture of areas of
soil valuation
Requirements 1) Determining of the geodata to be
maintained in the future ? Geobasis-NI 2)
Enlargement of the object catalogue OBAK-LiegKat
NI 3) Delivery of new software
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ALKIS - Concept for Migration NI (2)
Measures addition of building objects addition of
current land use
Data capture according to priorities
? Priority 1 capture compulsory for migration to
ALKIS
? Priority 2 capture not compulsory but
desirable according to available capacities
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geoMDK
Metadata
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geoMDK Future Development
W3C - Standards (XML, ) ISO oriented data
maintenance (ISO 19115) Communication/Data
exchange based on OGC-standards (Catalog Service,
)
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• Cadastre Challenges
• Metadata for cadastre acc. to ISO
• Integration of cadastre information into
  topographic mapping, e.g. generalisation of
  buildings
• Customer needs for spatial planning
• INSPIRE principles for European Spatial Data
  Infrastructure
• MODELLING OF CADASTRE ACCORDING TO FUTURE SDI
  NEEDS!

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• Cadastre and SDI
• Cadastre data form integral part of national SDI,
  although dealing with regional issues.
• Integration of information deducted from
  cadastre
  into topographic mapping requires the same
  standards (data architecture, exchange formats)
  for enabling interoperability.
• Cadastre needs to be involved into SDI matters
  from the earliest possible stage on.

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