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The Data View: Editing SKOS Thesauri

Intro

This section describes the thesauri editing functionalities available in VocBench. We will go through the set of functionalities as they appear in the various elements of the user interface.

The Various Sections in SKOS Projects

SKOS Projects offer 5 sections for managing different kind of resources. We have already described the Class and Property sections in the manual page on OWL Editing, so here we will discuss the three other sections peculiar to thesauri.

When editing a SKOS thesaurus, the landing page for the Data View is the Concept Section. When opening a new project for the first time, VB will inform the user (through the question mark on the yellow triangle in figure below) that one or more schemes have to be selected, in order to show their related concept trees.

concept page

The Scheme Section

The Scheme Section (as of all the data section) is composed of two main areas: the structure on the left, and the resource view on the right. However, differently from other resources, the structure page offers a simple list, and not a tree (or, better, in a forest) as skos:ConceptSchemes have no taxonomic relation among them. Concept schemes provide containers for concepts in a thesaurus. Depending on the literature, it is also possible to say that concept schemes identify different thesauri in a same dataset. Whatever the terminology, the objective of concept schemes is to allow different views on a shared pool of concepts.

The Scheme section allows to create and destroy skos concept schemes. When the usual + button is clicked, a form allows the user to prompt the concept scheme information. The form is composed of the following elements:

concept page

Once one or more schemes are created, they will appear as a list in the structure section. Note that for each scheme is (independently) selectable, through the checkbox buttons on their left. The selection will affect the view on the Concept Section.

concept page

The Concept Section

The Concept Section is composed of two main areas as all other sections. The structure on the left, and the resource view on the right. The structure offers a tree-view very similar to the one in the class section, though here there is no Individual list (concepts are themselves instances of the class skos:Concept and have no instances on their own).

As we anticipated in the previous section, the tree view is affected by the selection of concept schemes performed on the Scheme section. Only those concepts belonging to at least one of the selected schemes will be shown on the tree. Note that:

concept page

As evident from the figure above, the concept Car is both a top concept of the "main scheme", and a narrower concept of the concept Veichle, which is also present in "main scheme".

The Concept-view

The resource-view for concepts (or, simply, concept-view) is divided into a few sections listing the following information:

The Collection Section

The Collection Section (as of all the data pages) is composed of two main areas: the structure on the left, and the resource view on the right. The structure offers as usual a tree, even though the semantics of the taxonomy here do not hint to some form of specialization, but to a containment relation. Collections may be normal collections (skos:Collection) or ordered collections (skos:OrderedCollection). Ordered collections, as their name suggest, represent ordered list of elements.

classPanel

The Collection-view

The resource-view for collection (or, simply, collection-view) is divided into a few sections listing the following information: