Changes to ELSST

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:

  • 49 new concepts
  • 54 new Use For terms
  • 39 relabelled Preferred Terms (for currency or ambiguity)
  • 164 changes to the BT/NT relationships
  • 22 new or changed Scope Notes
  • 55 deleted concepts

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.

Examples

  • New concepts include terms that were previously in HASSET, not ELSST: e.g. CHILD CUSTODY and WORK-LIFE BALANCE.
  • New Use For terms include FUNDAMENTAL RIGHTS as a Use For term of HUMAN RIGHTS, and CARE HOMES as a Use For term of RESIDENTIAL CARE.
  • Relabelled Preferred Terms include terms that were previously Use For terms in ELSST: e.g. TAX EVASION was previously the Use For term for TAX AVOIDANCE, but is now the Preferred Term. To help users, wherever possible we have added the previous Preferred Term as a new Use For term. We have also recorded name changes in the History Note of terms.
  • BT/NT relationship changes include the change of the BT for PHYSICAL MOBILITY from MOTOR PROCESSES to ACTIVITIES OF DAILY LIVING, and the change of BT for FOOD from PRODUCTS to FOOD AND NUTRITION.
  • New or changed Scope Notes include the change of the Scope Note for CITIZENSHIP from ‘THE POSITION OR STATUS OF BEING A CITIZEN, WITH ITS ATTENDANT RIGHTS AND RESPONSIBILITIES’ to ‘THE EXTENT AND QUALITY OF ACTUAL CIVIC PARTICIPATION’, and the change of Scope Note for SOCIAL ASSISTANCE from ‘ASSISTANCE IN MONEY OR KIND TO PERSONS WHOSE INCOME IS BELOW A CERTAIN LEVEL AND WHO LACK THE NECESSARY RESOURCES TO COVER BASIC NEEDS’ to ‘ASSISTANCE IN MONEY OR KIND’.
  • Deleted concepts include FUTURE and FREQUENCY.

Review of hierarchies

Work focused around the reconstruction of the following hierarchies:

  • WELL-BEING (SOCIETY)
  • LAW AND JUSTICE
  • ENERGY
  • SPORT
  • SAFETY AND SECURITY

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.

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