Overview of changes since the last release of ELSST
The current version of ELSST was released on 19 September 2018. The previous version dates from 21 September 2017.
Changes that have been made to the source language of ELSST since the last release in September 2017 include the following:
The translation of Preferred Terms for the following languages is 98-100% complete: Czech, Danish, Finnish, French, German, Greek, Lithuanian, Norwegian, Romanian, Slovenian, Spanish and Swedish.
Review of hierarchies
Work focused around the reconstruction of the following hierarchies:
In each case, we tried to reduce the number of top terms (i.e. terms with no Broader Term) and orphan terms (i.e. terms with no Broader or Narrower Term), in order to make the thesaurus easier to browse. The removal of orphan terms will also make the thesaurus more SKOS-compliant.
Two other structural changes were implemented. We reduced the number of polyhierarchies where possible (this work is ongoing). We also applied the RT constraint rule, that forbids an RT to be a term’s BT/NT or appear anywhere in its hierarchical structure. Many terms that were previously RTs can now be found by expanding a term’s Tree view.
Redistribution of scope note field
Work also continued on redistributing the information that was previously contained in scope notes into the new note fields (i.e. Scope note, Scope note source, Use note and History note). This work has now been completed for the source language and is being implemented in the target languages.
At the same time, ELSST and HASSET scope notes were made identical. Thus ELSST concepts that are shared with HASSET (identified as ‘core’ in the thesaurus), now share their Preferred Term label, Broader Terms and Scope Note with HASSET.