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AAA - The contribution of the AdV in an increasing European Spatial Data Infrastructure - the German Way. Markus Seifert Bavarian Administration for Surveying and Cadastre General Assembly of the Permanent Committee on Cadastre (PCC), 12.6.-14.6.2007, Hamburg.

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Slide1 l.jpg

AAA - The contribution of the AdV in an increasing European Spatial Data Infrastructure - the German Way

Markus Seifert

Bavarian Administration for Surveying and Cadastre

General Assembly of the Permanent Committee on Cadastre (PCC),

12.6.-14.6.2007, Hamburg


Personal background l.jpg

  • Head of the SDI office in Bavaria

    • Establishment of a SDI in Bavaria

  • Head of the project team “SDI Standards” of the AdV

    • Responsible for developing and mainenance of the new integrated cadastre model ALKIS

  • Representaive of the AdV to the OpenGeospatial Consortium (OGC)

    • AdV becomes a technical member of OGC

  • Head of the German delegation to ISO/TC 211

  • Member of the Drafting Team “Data Specification” at INSPIRE

  • Personal Background


    Content l.jpg

    • SDI - The European way

    • SDI and AAA – The German way

    • The new integrated cadastre model ALKIS

      • Content

      • Contribution to the NSDI

  • Geoservices

  • Content


    Current situation in europe l.jpg

    EU has islands of data of different standards and quality...

    Current situation in Europe

    • Data policy restrictions

      • pricing, copyright, access rights, licensing policy

    • Lack of co-ordination

      • across boarders

      • between levels of government

    • Lack of standards and their use

      • incompatible information

      • incompatible information systems

      • fragmentation of information

      • redundancy

    • Lack of data

    No spatial data infrastructure


    Slide5 l.jpg

    Framework for E-services

    GI-specifications

    GI-standards

    „AAA implementation started in 2005“

    INfrastructure for SPatial

    InfoRmation in Europe INSPIRE

    SDI Germany

    The aim is the a harmonised

    framework directive for implementation

    of a European spatial data

    infrastructure (ESDI)


    Requirements for an esdi l.jpg

    • A European spatial data infrastructure basically needs (strategic view)

    • Harmonized geodetic reference

    • Metadata for discovery of existing data

    • Harmonized geodata and geo-services

    • Bundle geodata and geo-services within one European portal

    • Handle access rights and licensing policies for all users

    • Controlling and monitoring of the implementation within the EU member states

    • Methodology for building up a ESDI (considering process, consensus process, decision making etc.)

    • Keep data where it is collected and maintained and make itaccessible for other using geo-web services (WMS, WFS etc.)

    • All these issues are addressed by the INSPIRE framework directive and the implementation rules

    Requirements for an ESDI


    Requirements for inspire l.jpg

    Requirements for INSPIRE


    Content8 l.jpg

    • SDI - The European way (strategic view)

    • SDI and AAA – The German way

    • The new integrated cadastre model ALKIS

      • Content

      • Contribution to the NSDI

  • Geoservices

  • Content


    The national geodatabase reference data l.jpg

    ALK (strategic view)

    Automated Real Estate Map

    ALB

    Automated Real Estate Register

    AFIS-ALKIS-ATKIS

    Application Schema

    ATKIS

    Geodetic Reference Points

    Offical Topographic and Cartographic Information System

    The National Geodatabase – Reference Data

    Quite a lot of redundant

    information


    Data modelling data and information l.jpg

    send: (strategic view)

    receive:

    „my car“

    „his car“

    • Information

    • Information

    (farmalising)

    (reconstruction)

    data

    data

    (Transfer)

    car

    Data modelling: Data and Information


    Slide11 l.jpg

    Data modelling: Data (strategic view)and Information

    Reveiver:

    Transmitter:

    • Information

    • Information

    Metadata:

    Class „car“:

    Attribute „producer“

    Attribute „price“

    Attribute „colour“

    Attribute „production year“

    Attribute „condition“

    Attribute „current milage“

    Attribute „notation“

    (formalising)

    (reconstruction)

    Data

    Data

    (Transfer)

    c a r


    Slide12 l.jpg

    Model-driven Approach is promoted for a ESDI (strategic view)

    This and the following recommendations are listed in the

    Technical Report CEN/TR 15449

    “Geographic information - Standards, specifications, technical reports

    and guidelines, required to implement Spatial Data Infrastructures”


    Data modelling as a basis for a sdi l.jpg
    Data modelling (strategic view)as a basis for a SDI

    • A simple overlaying of maps in the internet do not need a object-oriented data model but sifficient search and presentation functionalities (web map services)

    • In future the requirements for geo- information will increase, that meansgeoinformation must be(automatically) readable

    • Requirements

      • Standardised and readable description of the digital content using a data model

      • Internet services that can handle geoinformation in the internet (search, find, interpret, process, transfer und present  web feature services)

      • A spatial data infrastructure thererfore needs web functionalities as well as standardised data models for describing all geoinformation (reference data and thematic)


    Slide14 l.jpg

    Contribution of the AAA Model to the European SDI (strategic view)

    • Preconditions for a SDI (data modelling view)

    • Model-driven approach for describing the data

    • Semantic harmonization of the existing data as far as

    • possible and sufficient (feature catalogues)

    • Application of the ISO standards for data modelling

    • and encoding

    • Implementation of metadata information systems for discovery

    • and access to the data

    • Implementation of interoperable web services for

    • data access distribution (ISO, OGC)

    • Operational issues (registries etc.)

    • Legal issues (data sharing, IPR etc.)

    • Pricing

    AAA data model


    Content15 l.jpg

    • SDI - The European way (strategic view)

    • SDI and AAA – The German way

    • The new integrated cadastre model ALKIS

      • Content

      • Contribution to the NSDI

  • Geoservices

  • Content


    Slide16 l.jpg

    Reference (strategic view)

    points

    buldings

    Legal

    classification

    Land use

    17/1

    17/2

    17

    parcel

    boundaryboundary point

    17/3

    16

    17/4

    Content of the new cadastre information system (ALKIS)

    + location, owner, ...


    Slide17 l.jpg

    owner (strategic view)

    Land register

    17/1

    17/2

    17

    17/3

    16

    17/4

    Content of the new cadastre information system (ALKIS)

    School

    2 levels

    Motorway

    A 7

    III. Order

    Ilm

    Industrial use

    2 levels

    Industry and commerce

    District 8633number 17/2area 657

    Main street12



    Slide19 l.jpg

    Parcels, Location, (strategic view)

    Houses

    Buildings, Facilities and

    Geodetic Points

    other Facts

    Land Use

    Relief, DTM

    Owner,

    Property Rights

    Legal Classification,

    Administration Areas

    Migration Objects

    User Profile

    Unified Modelling Language (UML)

    Application schemas are documented by

    using a conceptual schema language. Such

    a language may have a well defined

    graphical notation (such as UML for class

    diagrams) but also a machine-readable

    format.

    The use of UML according to ISO/TS 19103

    is promoted as an ESDI conceptual schema

    language.


    Slide20 l.jpg

    Consequent use of International Standards (strategic view)

    Recommendation: ISO 19109 and referred standards are promoted as ESDI rules for specifying data structures and semantics.

    19109

    Rules for

    application

    schema

    NAS

    (XML-Schema)

    Feature Catalogue

    (HTML, RTF)

    19110

    Feature

    catalogue

    19136 (GML) profile

    Feature Catalogue

    (XML)

    19118 Level 1

    AAA application schema

    19107 – 19111 Geometry, CRS

    19112 – 19115 Metadata

    19103 Conceptual schema language (UML)


    Slide21 l.jpg

    Extract of ISO 19107 (strategic view)Spatial Schema: Geometry Schema

    Answer the following questions:

    Are all these elements relevant fora SDI or a common used data model

    within one thematic domain?

    If not, which are relevant?

    Determine ISO-profiles for specific domains

    Domain a

    State B

    Domain a

    State A


    Components of the afis alkis atkis data model l.jpg

    AAA basic schema as profile of ISO that specifies (strategic view)

    common used data elements (e.g. geometric primitives)

    UML

    AAA thematical schema

    Thematical schema

    xxx

    UML

    Cadastre

    feature catalogue

    xxx-

    feature catalogue

    automated creation by

    using a tool (Rational

    Rose script)

    interface

    xxx

    Generic Structure of the AAA data model

    Components of the AFIS-ALKIS-ATKIS-Data model

    Topography

    feature catalogue

    Data exchange interface

    NAS (standard based data exchange interface)


    Slide23 l.jpg

    <<Leaf>> (strategic view)

    <<Leaf>>

    <<Leaf>>

    AAA_Spatial Schema

    AAA_Catalogue

    AAA_BasicClasses

    + AA_Flaechengeometrie

    General structure of a feature

    + AC_FeatureType

    + AA_AdVStandardModell

    + AA_Liniengeometrie

    + AC_ObjektTypenBezeichnung

    + AA_PMO

    + AA_PunktLinienThema

    + AC_Objektartenbereich

    + AA_Fachdatenobjekt

    + AG_ObjektMitGemeinsamerGeometrie

    + AC_Objektartengruppe

    Structure of a featurecatalogue

    + AA_Fachdatenverbindung

    + AU_ObjektMitUnabhaengigerGeometrie

    + AC_Thema

    + AA_Lebenszeitintervall

    + TA_CurveComponent

    + AC_Themenart

    + AA_Modellart

    + TA_MultiSurfaceComponent

    + AA_NREO

    + TA_PointComponent

    + AA_Objekt

    Geometry

    + TA_SurfaceComponent

    + AA_ObjektOhneRaumbezug

    + AA_REO

    + AA_UUID

    + AA_ZUSO

    Operations

    + URI

    <<Leaf>>

    <<Leaf>>

    Presentation

    AAA_Operations

    AAA_IndependantGeometry

    + AA_Art_Themendefinition

    <<Leaf>>

    + AU_Flaechenobjekt

    + AA_Auftrag

    Use cases

    AAA_CommonUsedGeometry

    + AU_Geometrie

    + AA_Ergebnis

    + AU_KontinuierlichesLinienobjekt

    + AG_Flaechenobjekt

    + AA_Instanzenthemen

    + AU_Linienobjekt

    + AG_Geometrie

    + AA_Themendefinition

    + AU_Objekt

    + AG_Objekt

    + AU_Punktobjekt

    + AG_Linienobjekt

    + AG_Punktobjekt

    <<Leaf>>

    <<Leaf>>

    AAA_ProjectControlling

    <<Leaf>>

    AAA_PresentationObjects

    + AA_Antrag

    AAA_PointCollection

    + AP_FPO

    + AA_Antragsart

    + AD_GitterCoverage

    + AP_GPO

    + AA_BesondereMeilensteinkategorie

    + AD_PunktCoverage

    + AP_HorizontaleAusrichtung

    + AA_Dokumentationsbedarf

    + AD_ReferenzierbaresGitter

    + AP_LPO

    + AA_Gebuehrenparameter

    + AD_Wertematrix

    + AP_LTO

    + AA_Meilenstein

    + AP_PPO

    + AA_Projektsteuerung

    + AP_PTO

    + AA_Projektsteuerungsart

    + AP_TPO

    + AA_Projektsteuerungskatalog

    + AP_VertikaleAusrichtung

    + AA_Vorgang

    + AA_VorgangInProzess

    <<Leaf>>

    AAA_UserProfile

    + AA_Vorgangsart

    + AA_Benutzer

    + AA_Benutzergruppe

    Baseline for thematic application schemas:The AAA Basic Schema


    Aaa basic schema as basis for thematic information systems l.jpg

    Real Esate (strategic view)

    prices

    3D information

    AAA thematic schema

    Town planing

    Rural

    development

    - - -

    Cadastre

    (ALKIS)

    AdV basic schema

    Thematic exchange interfaces

    Standardised Data exchance

    interface (NAS)

    Modelling of thematic data

    AAA basic schema as basis for thematic information systems


    Content25 l.jpg

    • SDI - The European way (strategic view)

    • SDI and AAA – The German way

    • The new integrated cadastre model ALKIS

      • Content

      • Contribution to the NSDI

  • Geoservices

  • Content


    Geo web services l.jpg
    Geo Web Services (strategic view)

    • All web services are implemented under consideration of the activities of SDI-Germany

    • AdV defined a profile of the Web Map Server specification, determine some further definitions to fill degrees of freedom, e.g: - CRS - Raster format

      - etc.

    • A WFS-G (Gazetteer service) will be implementated for providing coordinates for buildings

    • A catalogue service for discovering and harvesting metadata will be implementated based on ebRIM or CSW DE profile

    • For operational implementation of the SDI Germany a registry will be applied

    • For examples see www.gdi.bayern.de


    Slide27 l.jpg

    Geoservices (strategic view)

    • OGC Web Map Service (WMS)

    • Request of digital maps in raster format (PNG, GIF, TIFF, JPEG) coming from seperated digital geographic databases

    • Displaying with a web viewer (web browser or GIS)

    • Precondition: georeferencing, metadata, URL

    • Functionalities: GetCapabilities, GetMap, GetFeatureInfo


    Slide28 l.jpg

    Geoservices (strategic view)

    • OGC Web Feature Service (WFS)

    • Request to geo resources in vector format (attributes and geometry)

    • Displaying with a web viewer (web browser or GIS)

    • Precondition: Georeferencing, metadata, URL

    • Functionalities: GetCapabilities, DiscribeFeatureType,

    • GetFeature

    • Extension: Transaction-WFS (read only and update)


    Slide29 l.jpg

    Online Presentation (strategic view)

    • Geo web services:

    • www.gdi.bayern.de

    • E-services related on cadastre:

    • www.geoportal.bayern.de


    Conclusions l.jpg
    Conclusions (strategic view)

    • The AAA data model with the basic schema offers a thematic-independent and generic model framework that can be a baseline for modelling of other thematic domain data models. That will help to standardise the geoinformation in Germany.

    • A SDI for geoinformation (not just geodata) needs an exact and transparent definition of the sharable data. Therefore the same methodology as defined with the AAA data model can be used. Doing this a national geo database can be established.

    • The AdV offers support by using the UML tools for defining the data model and deriving the data exchange interface. Specific guidelines have been published on the AdV home page. The AdV guaranties maintenance at least until 2012.

    • The success of the AAA data model bases on the consequent use of international GI standards from ISO.

    • Geoservices will help to provide cadastral information and can be integrated within variable applications of e-government solution.


    For more information see www adv online de l.jpg
    For more information see (strategic view)www.adv-online.de

    • Questions?