J. Nogueras-Iso, J.A. Bañares, J. Lacasta, J. Zarazaga-Soria 105 A Software Tool for Thesauri Management, Browsing and Supporting Advanced Searches

Thesauri have been widely used to improve the precision and recall of information re-trieval in digital libraries for decades. They provide a uniform and consistent vocabulary for indexing metadata ("description of the data holdings“) and for supplying users with a suitable vocabulary for the retrieval. Therefore, a thesaurus management tool becomes a vital component in the development of any kind of digital library and this also exten-sible in the context of a Spatial Data Infrastructure (SDI), a digital library specialised in geographic information resources. This work presents a thesauri management tool with two main objectives: a basic management and browsing of thesauri; and providing some mechanisms to enhance cross-discipline interoperability between different thesauri