Managing Concept Schemes (SKOS Thesaurus)

You can update the concepts schemes of an ontology.

Use the Search tool to find specific concept schemes.

This task shows you how to:

Add a concept scheme

  1. In the Ontology, click the Concept Schemes tab.
  2. Click
    The Create a concept scheme dialog box appears.
  3. Type the Preferred label.

    The URI is generated on the fly from the Collection Preferred label entered (if English is selected), otherwise a UUID (Universally unique identifier) based URI is generated.

    Note: Preferred labels entered are in the language you selected in your Preferences.

  4. Click Ok.

Update a concept scheme

  1. In the Ontology, click the Concept Schemes tab.
  2. Select a concept scheme and update the fields.

    You can add a type (RDFS or OWL Class).

    Note: The URI field is not editable.

  3. Optional: If you want to edit or display additional properties (other than built-in properties):
    1. Click > More
    2. In the Search properties field, enter the label of the property you want to add.

      An autocomplete list appears.

      Select the property you want to add and click .

      Note: The list of properties is retrieved from the current ontology and from all its prerequisite ontologies. The properties of the Ontology type are not proposed.

    3. In the property line, add the values.

      Depending on the property configuration, you can add Literal, or/and URI values.

      For example, you can add:
      • Literal value: a property whose values are literals. Click to add a literal value.
      • Resource value: a property whose values are URI resources.
      • Resource or Literal value: a property whose values are URIs or literals. Click to add a literal value. Enter a URI name (autocomplete) to add a URI.
      Note: If the property is functional, only one value can be provided.

    4. To delete an additional property, remove all its resources.
  4. Click Update.

    Click Reset to ignore changes since last update.

Delete an concept scheme

  1. In the Ontology, click the Concept Schemes tab.
  2. Click next to the concept scheme you want to delete.

    You can also click on the concept scheme and click .

    A dialog box asking if you want to delete the concept scheme appears.
  3. Click Yes.