Procedure for Getting and Publishing Metadata for LOGD International OGD Catalog (IOGDS)

Given a catalog, metadata for each dataset is extracted and saved in a CSV file. csv2rdf4lod automation is then used to convert the CSV file into RDF. Four outputs are publicly accessible through for each catalog:
 Example 1:
Metadata in csv format
Source code if any to get the metadata
Conversion trigger
Enhancement file
 Example 2:
Metadata in csv format
Source code if any to get the metadataT.B.D.
Conversion trigger
Enhancement file

Workflow for getting metadata
  1. Select a catalog
  2. List all datasets in the catalog and collect metadata for each dataset in a big table; save the table in CSV format
    • Some catalogs provide a data dump, such as; use the provided dump files
    • For catalogs that do not provide a data dump, custom programs must be used (e.g. in Java, Python or otherwise) to extract the metadata
  3. Commit the CSV files and any corresponding source code to

Workflow for publishing a dataset catalog
  1. Follow csv2rdf4lod conversion/enhancement process to convert the csv files into rdf, see details in
    1. Run the converter to generate the default enhancement configuration
    2. Edit the enhancement configuration files to map the original metadata into designed metadata for LOGDC
    3. Re-run the converter to generate the rdf graph
  2. Commit the enhancement configuration files and conversion triggers to