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SDI from a technological perspective: Metadata

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Presentation on theme: "SDI from a technological perspective: Metadata"— Presentation transcript:

1 SDI from a technological perspective: Metadata
Arnold Bregt

2 Components People Technology Policies Standards Spatial Data

3 Centrum voor Geo-informatie
Experiment Centrum voor Geo-informatie

4 Centrum voor Geo-informatie
Stsul.dat . . . Centrum voor Geo-informatie

5 Depth to the pyritic layer

6 Why describe spatial datasets?
Manage (storage and change) Search (content global ) Exchange (format ) Use (content details, quality) Centrum voor Geo-informatie

7 Centrum voor Geo-informatie
Target groups Personal (storage) Own organisation (storage and content) Other organisations (content, format, quality, contact person) Centrum voor Geo-informatie

8 Centrum voor Geo-informatie
Extent description Target groups Functions Manage Search Exchange Useuse Personal Own organisation Other organisation Centrum voor Geo-informatie

9 Centrum voor Geo-informatie
How to describe ? Personal standard Organisational standard (inter)national standards Centrum voor Geo-informatie

10 Exercise Draft your own Metadata Standard

11 International standards
America (FGDC) Europe (CEN) ISO (ISO19115) Centrum voor Geo-informatie

12 Metadata Standards There are many

13 Metadata standards

14 Standards for Meta-data
Centrum voor Geo-informatie

15 Metadata Standards But the leading one is ISO 19115

16 Metadata INSPIRE Metadata INSPIRE

17 Metadata Standards Profiles

18

19

20 Metadata implemantation
Profiles from ISO 19115 Implementation schema in XML (ISO 19139) Software support (e.g. Geocat in Bennekom)

21 Latest version ISO : 2014

22 Relation with other standards

23 Evolution of standards

24 Centrum voor Geo-informatie
Conclusions Describing spatial datasets with meta-data is essential to keep the data accessible in the future. For (inter) national exchange the use of a standard is a must. A problem with describing metadata is that the personal requirements are less than the organisational requirements. Centrum voor Geo-informatie

25 Thank you for your attention!
Questions Thank you for your attention!

26 XML XML = Extensible Markup Language Standard of W3C
Both machine and human readable Store data and exchange over the internet

27 Example <?xml version="1.0" encoding="UTF-8"?> - <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Don't forget me this weekend!</body> </note>

28 XML presentation

29 XML is everywhere! Word documents Meta data (geonetwork)
Basis for GML, KML, CityGML , etc

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