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The NATURE-SDI plus Solution for Data Harmonisation

The NATURE-SDI plus Solution for Data Harmonisation. PRESENTATION OVERVIEW. The DH-TWG The DH methodology The procedure for data transformation The procedure for metadata transformation The guidelines The matching tables The transformation tools A practical example of data remodeling

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The NATURE-SDI plus Solution for Data Harmonisation

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  1. The NATURE-SDIplus Solution for Data Harmonisation

  2. PRESENTATION OVERVIEW • The DH-TWG • The DH methodology • The procedure for data transformation • The procedure for metadata transformation • The guidelines • The matching tables • The transformation tools • A practical example of data remodeling • The methodology to facilitate and to monitor the status of the DH process

  3. Why a DH-TWG? • Data harmonisation process involves: • Different players (data providers, technological partners, research partners) • Operational implementation of DH impacts on different tasks Need of a dedicated technical coordination  DH-TWG 3

  4. WP3 WP6 WP4 T6.1:Guidelines for service provision(INGR) T3.1: Mmultilingual and multicultural issue (CNR-IMATI) T4.2: Geoportalspecification (GT) T5.1: Data interoperabilityvalidation (NEN) T4.3: Geoportal (INGR) T3.4:Procedures for metadata and model implementation (Tracasa) T5.2: Data accessibility and usability evaluation (Fraunhofer) T 3.3 Data model(Tracasa) T3.2: Metadata profile (IRD) T4.1 Harmonised datasets (Tracasa ) T5.3: Quality evaluation and datasetsgeneralization (AGI) T2.3: Data set analysis and systematisation (UNIABDN) WP2 WP5 LINKED TASKs CSW WFS WMS WS

  5. SOURCE SIDE TARGET SIDE Selection of the sample DS Selection of the target schema Analysis and schematisation of the sample DS Analysis of the target schema Creation of the Matching table Matching analysis GUIDELINES & PROCEDURES TOOLS Data transformation HARMONISED DATASET The overall DH methodology (1/3)

  6. The overall DH methodology (2/3)

  7. The overall DH methodology (3/3) • The services we have created: • Web Map Services (WMS) and Web Feature Services (WFS) for the Data • Catalogue Web Services (CSW) for the Metadata • Once processed, harmonised, transformed and made accessible through the Geoportal, spatial datasets, metadata and network services (accessibility and usability) have been validated

  8. The procedure for Data Transformation • Identify a source data model • Create a simple geodata structure • Fill the Data matching table • Document the process • Choose Transformation Tool • Perform Transformation • Store Transformation Rules • Publish harmonised Data

  9. The procedure for Metadata Transformation • Identify a source metadata profile • Fill the Metadata matching table • Document the process • Choose Metadata Editor • Create or Update Metadata • Store Transformation Rules • Publish harmonised Metadata

  10. The Guidelines Procedures for metadata profile and data model implementation, including Quality control for the harmonisation process

  11. The Matching Tables (1/3) • Spatial Datasets: • Final Matching table for PS (Annex I) • Final Matching Tables for BR, HB, SD (Annex III) • Metadata: • Final Matching table for PS (Annex I) • Final Matching Tables for BR, HB, SD (Annex III)

  12. The Matching Tables (2/3)

  13. The Matching Tables (3/3)

  14. The Transformation Tools • Transformation tools for metadata: • MDweb (IRD), INSPIRE Metadata Editor, CatMDEdit, GeoNetwork, MIG Metadata Editor, disy Preludio. • Transformation tools for spatial datasets: • GeoConverter, GeoMedia Fusion, Humboldt Alignement Editor, Go Publisher • Tools surveyed, investigated and under testing by Technical Partners, used by DPs

  15. Survey of the tools for MetaData transformation • Tool capabilities surveyed • Reading non ISO 19115 profile • Reading ISO 19115 profile • Allowing to define / load specific profiles (in our cases Nature-SDIplus) • Allowing manual / semiautomatic / automatic mapping processes • Allowing save and reuse automatic process • Perform quality mapping control: Any? Specify • Publish metadata catalogue (CSW) • Allowing multilingualism • License • Allowing different export formats • Other interesting characterises • System Requirements Software, Hardware

  16. Survey of the tools for DS transformation • Tool capabilities surveyed • Enumerate input formats • Enumerate output formats • Read input data • Change Coordinate reference System • Allowing to define / load specific target model • Allowing manual / semiautomatic / automatic mapping • Allowing to save transformation process • Any transformation quality control. Specify • Allowing multilingualism • License • System Requirements Software, Hardware

  17. Example of application of DH Procedure – step 1 cntrygr_ENG_SCI -SPA_Aug_2009.mdb (MS Access mdb) STEP 1.1: Selection of the sample source dataset Natura2000 dataset of Greece, source: EIONET; free download GR_Natura2000 _v27.shp + Commission Decision 97/266/EC of 18.12.1996 concerning a site information format for proposed Natura2000 sites STEP 1.2: Deep analysis of the source dataset

  18. Example of application of DH Procedure – step 5 WFS deployment with GO Publisher WFS Harmonised PS datasets viewed with Gaia

  19. Monitoring DH process • Prepared a template to collect feedback from DP about Data Harmonisation • Prepared a template to collect feedback from DP about Metadata Harmonisation • Prepared a tool (excel spreadsheet based) to monitor the status of the DH proces

  20. Monitoring DH process

  21. 14 different “tool configurations” used by DPs in the Metadata Harmonisation Process

  22. 16 different “tool configurations” used by DPs in the Datasets Harmonisation Process

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