The Thesaurus data model is based on CIDOC CRM model and principles laid out in the “Definition of the CIDOC Conceptual Reference Model (version 5.02)”.

CIDOC CRM is an object-oriented subject field ontology for data exchange and integration between heterogeneous cultural heritage sources.
The model aims to provide semantic definitions and explanations needed to transform different information sources into a single resource - thesaurus.

The BAVIC thesaurus is a vocabulary of personal names, geographical names and historical chronology data indicating the conceptual links between them.
There are three types of relationships between terms: hierarchical (e.g., Lietuva – Biržų rajonas– Braškiai), equivalent (e.g. Litwa - Lithuania - Lietuva; Dumas, Alexandre - Diuma, Aleksandras), and associative. There are additional terms specifying the main hierarchical relationships between terms (e.g. location: the type of location (geographical, administrative).

There are 5 main data groups in Thesaurus model:

  • Personal names;
  • Locations;
  • Groups;
  • Periods;
  • Topics.

The purpose of the BAVIC Thesaurus integrated presentation and management of both contemporary and historical chronological, geographical and biographical data relevant for digitizing the Lithuanian culture heritage. The Thesaurus search web page opens by activating “Thesaurus” link of the main menu. The search retrieves information about persons, groups, locations, historical periods and topics, i.e. it will not display digitized objects in the list of results but, for example, when viewing an author’s biography, there will be a suggestion to view his/her works (see Fig. 14) and vice versa: when a work's description is displayed, one can enter the web page with the author’s biography (by clicking the link with author’s name).

Fig.14: Display of the Thesaurus object

A detailed list of works by the author is displayed after following the link “show all related objects”.