1. 1 / x Metadata GRS32806 Arnold Bregt

2. Contents Presentation Role of Metadata in society Functions of Metadata (for GI) Metadata standards Metadata within SDIs

3. What is this?

4. Stsul.dat 0020 1015 5035 10045 75030...

5. It is… Starting depth pyritic layer Kalimantan, Indonesia

6. Experiment Two bottles

9. There are many Metadata standards http://en.wikipedia.org/wiki/Metadata_standards Dublin Core (15 elements): describe resources for the purposes of discovery (: 1.Title 2.Creator 3.Subject 4.Description 5.Publisher……..

10. Functions of Metadata (for GI)

11. Why describe spatial datasets? Manage(storage and change) Search(content global ) Exchange(format ) Use(content details, Quality)

12. Target groups Personal: (storage) Own organisation: (storage and content) Other organisations: (content, format, quality, contact person)

13. Extent description Target groups Functions manage search exchange use Personal + +- - Own organisation ++ ++ ++ ++ Other organisation - +++ +++ +++

14. Metadata standards? Personal standard Organisational standard (inter)national standards

15. Compile your own Metadata standards By a “metaplan approach”

16. International standards America (FGDC) Europe (CEN) ISO (ISO 19115)

17. Implementation of Metadata standards

18. Identification Quality Spatial reference Meta-data reference Classification Administr. meta-data Overview CEN meta-data Data definition CEN metadata standard for GI CEN meta-data Extent

19. Main elements ISO 19115

20. Main elements

21. Main elements (INSPIRE)

22. The ISO 19115 It describes what not how About 300 elements Version from 2003 ISO 19115 – 2: Geographic information - Metadata - ISO 19139 Implementation specifications

23. Profiles for ISO 19115

24. Metadata within SDIs Metadata play a central role in SDI: Publishing data Discovering data Using data To keep metadata “up to date” is problematic There are attempts to automate it.

25. Use of Metadata After Winer, 2011

26. Metadata evolution Olfat et al., 2010

27. FAO Geonetwork

28. INSPIRE

29. Nertherlands

30. Conclusions Describing spatial datasets with metadata is essential to keep the data accessible within SDI’s. For (inter) national exchange the use of a standard is a must. A problem with describing meta-data is that the personal requirements are less than the organisational requirements.

31. Assignment of the week Please prepare a presentation about your SDI case from a technological point of view. Concentrate on the use meta-data and the role of Service Oriented Architecture (SOA) in your SDI case. Is SOA implemented and how? Provide an example of the functioning of your SDI (In the case of oral presentation through a life demonstration).