Summary: Gis In Context

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  • 1 GIS in context

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  • What six parts do Geo information systems consist of?

    People
    software
    data
    procedures
    hardware
    network
  • What are the 5 main geoinformation services?

    Inventory and status:
    - Mapping & Measuring

    Detection of changes:
    - Monitoring

    Research: analysis and predcition:
    - Modelling

    Organisation and maintenance:
    - Management
  • What is the definition of Geo-Information Science?

    Geo-Information Science is the discipline dedicated to reflection on and discussion of 
    - Collecting,
    - the storage,
    - the handling,
    - the visualisation
    - the exchange, 
    Regarding the (societal) usability of geographical data/Geo-spatial data
    by geoinformation Systems and Services in a variety of applications (5M's)
  • What are the first disciplines Geo information Science is coming from?

    Land surveying and geodesy
    computer science
    geography
    Cartography
  • 2 week 2

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  • What are the characteristics of SDIs?

    Allow for efficient and flexible sharing of geodata
    based on agreements about techincal, institutional, and legal ways of goedata exchange
    geodata remain under the administration of the data owner
    access to data via metadata
    SDIs predominantly administered by the government
    but all actors (users, private companies, government) have to comply to SDI standards to make it work
  • What are the groups of standards in SDIs? + 1 example each

    Standards for data (.shp)
    Standards for data services (WMS)
    Standards for metadata (Dublincore)
    standards for Catalogue service (CSW)
  • What is syntactic ineroperability?

    Defined as the ability to exchange data  and is associated with dataformats
  • What is semantic interoperability?

    Two communicating systems interpret the information in the same way
  • What are the meta data functions ?

    It is a data label
    enable finding the datasets
    help to interpret dataset
    describe access and use restriction 
    describe (partly) data lineage
    are standardized
  • What are the different SDI bind techonologies/standards?

    WMS - Webmapping service - only view
    WFS - web feature service - access to data (feature)
    WCS - web coverage servicce - access to data (raster)
    GML - Geography markup Language - 
    GeoJSON
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