Bavarian Agency for Surveying and Geoinformation AAA

Bavarian Agency for Surveying and Geoinformation AAA - The contribution of the Ad. V in an increasing European Spatial Data Infrastructure - the German Way Markus Seifert Head of the Ad. V project team “SDI Standards” FIG TS 59 – Ad. V Session

Current situation in Europe Bavarian Agency for Surveying and Geoinformation re tu c ru t Data policy restrictions • pricing, copyright, access rights, licensing policy Lack of co-ordination EU has islands of • across boarders data of different • between levels of government standards and quality. . . Lack of standards and their use • incompatible information systems • fragmentation of information • redundancy Lack of data s a o N s a p t a d l ia t fr in a 2

Bavarian Agency for Surveying and Geoinformation Framework for AAA GI-specifications GI-standards „AAA implementation started in 2005“ SDI Germany INfrastructure for SPatial Info. Rmation in Europe INSPIRE The aim is the a harmonised framework directive for implementation of a European spatial data infrastructure (ESDI) 3

Bavarian Agency for Surveying and Geoinformation The German Way ALK ALB Automated Real Estate Map Automated Real Estate Register Quite a lot of AFIS-ALKIS-ATKIS redundant information Application Schema ATKIS Offical Topographic and Cartographic Information System Geodetic Reference Points 4

Requirements for a ESDI Bavarian Agency for Surveying and Geoinformation 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 it accessible for other using geo-web services (WMS, WFS etc. ) All these issues are addressed by the INSPIRE framework directive and the implementation rules 5

Bavarian Agency for Surveying and Geoinformation Contribution of the AAA Model to the European SDI 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 AAA data model • Implementation of interoperable web services for data access distribution (ISO, OGC) • Operational issues (registries etc. ) • Legal issues (data sharing, IPR etc. ) • Pricing 6

Bavarian Agency for Surveying and Geoinformation Model-driven Approach is promoted for a ESDI 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” 7

Unified Modelling Language (UML) Parcels, Location, Geodetic Points Land Use Houses Buildings, Facilities and other Facts Relief, DTM Owner, Property Rights Legal Classification, Administration Areas User Profile Bavarian Agency for Surveying and Geoinformation Migration Objects 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. 8

Use international Standards Bavarian Agency for Surveying and Geoinformation Recommendation: ISO 19109 and referred standards are promoted as ESDI rules for specifying data structures and semantics. NAS (XML-Schema) 19136 (GML) profile 19109 Rules for application schema Feature Catalogue 19118 Level 1 (HTML, RTF) (XML) AAA application schema 19110 Feature catalogue 19107 – 19111 Geometry, CRS 19112 – 19115 Metadata 19103 Conceptual schema language (UML) 9

Bavarian Agency for Surveying and Geoinformation Determine ISO-profiles for specific domains Extract of ISO 19107 Spatial Schema: Geometry Schema Answer the following questions: Domain a State B Are all these elements relevant for a SDI or a common used data model within one thematic domain? If not, which are relevant? Domain a State A 10

Generic Structure of the AAA data model Bavarian Agency for Surveying and Geoinformation Components of the AFIS-ALKIS-ATKIS-Data model UML AAA basic schema as profile of ISO that specifies common used data elements (e. g. geometric primitives) UML automated creation by using a tool (Rational Rose script) AAA thematical schema ALKIS feature catalogue ATKIS feature catalogue Data exchange interface NAS (standard based data exchange interface Thematical schema xxxfeature catalogue interface xxx 11

Baseline for thematic application schemas: The AAA Basic Schema General structure of a feature Structure of a feature catalogue <<Leaf>> AAA_Basic. Classes + AA_Ad. VStandard. Modell + AA_PMO + AA_Fachdatenobjekt + AA_Fachdatenverbindung + AA_Lebenszeitintervall + AA_Modellart + AA_NREO + AA_Objekt. Ohne. Raumbezug + AA_REO + AA_UUID + AA_ZUSO + URI Bavarian Agency for Surveying and Geoinformation <<Leaf>> AAA_Catalogue + AC_Feature. Type + AC_Objekt. Typen. Bezeichnung + AC_Objektartenbereich + AC_Objektartengruppe + AC_Thema + AC_Themenart <<Leaf>> AAA_Operations Geometry <<Leaf>> AAA_Common. Used. Geometry + AG_Flaechenobjekt + AG_Geometrie + AG_Objekt + AG_Linienobjekt + AG_Punktobjekt + AA_Art_Themendefinition + AA_Auftrag + AA_Ergebnis + AA_Instanzenthemen + AA_Themendefinition <<Leaf>> AAA_Spatial Schema + AA_Flaechengeometrie + AA_Liniengeometrie + AA_Punkt. Linien. Thema + AG_Objekt. Mit. Gemeinsamer. Geometrie + AU_Objekt. Mit. Unabhaengiger. Geometrie + TA_Curve. Component + TA_Multi. Surface. Component + TA_Point. Component + TA_Surface. Component <<Leaf>> AAA_Independant. Geometry + AU_Flaechenobjekt + AU_Geometrie + AU_Kontinuierliches. Linienobjekt + AU_Objekt + AU_Punktobjekt Operations <<Leaf>> Presentation Use cases <<Leaf>> AAA_Point. Collection + AD_Gitter. Coverage + AD_Punkt. Coverage + AD_Referenzierbares. Gitter + AD_Wertematrix <<Leaf>> AAA_User. Profile AAA_Presentation. Objects + AP_FPO + AP_GPO + AP_Horizontale. Ausrichtung + AP_LPO + AP_LTO + AP_PPO + AP_PTO + AP_TPO + AP_Vertikale. Ausrichtung <<Leaf>> AAA_Project. Controlling + AA_Antragsart + AA_Besondere. Meilensteinkategorie + AA_Dokumentationsbedarf + AA_Gebuehrenparameter + AA_Meilenstein + AA_Projektsteuerungsart + AA_Projektsteuerungskatalog + AA_Vorgang. In. Prozess + AA_Vorgangsart + AA_Benutzergruppe 12

Data about data: Metadata Bavarian Agency for Surveying and Geoinformation Metadata provides information about data on different levels: from complete datasets to data of single features. Ad. V discovery metadata Metadata may be stored in a catalogue referring to a dataset or specific product Feature metadata using also ISO 19109 - Metadata attributes - Quality elements 13

Ad. V Web Services Bavarian Agency for Surveying and Geoinformation • All web services are implemented under consideration of the activities of SDI-Germany. • Ad. V 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 (Gazateer service) will be implementated for providing coordinates for buildings • A catalogue service for discovering and harvesting metadata will be implementated based on eb. RIM or CSW DE profile • For operational implementation of the SDI Germany a registry will be applied 14

Conclusions Bavarian Agency for Surveying and Geoinformation • The AAA data model with the basic schema offers a thematicindependent 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. • The Ad. V 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 Ad. V home page. The Ad. V guaranties maintenance at least until 2012. • 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. • The success of the AAA data model bases on the consequent use of international GI standards from ISO. • INSPIRE is going to implement a similar modelling methodology based on ISO standards. So the “German way” possibly could also be a European way. 15

Bavarian Agency for Surveying and Geoinformation For more information see www. adv-online. de Questions? 16

Bavarian Agency for Surveying and Geoinformation AAA —