**9. Visual vocabulary TemaTres**

TemaTres is a web-enabled open-source thesaurus construction software and written in PHP programming language. It is also known as vocabulary server for management formal representations of knowledge, thesauri, taxonomies, and multilingual vocabularies [15]. It has many features including SPARQL Protocol and RDF Query Language, Meta-terms (define facets, collections or arrays of terms), support for multilingual thesaurus, expose vocabularies with powerful web services, search terms suggestion, display terms in multiple deep levels in the same screen, search expansion, vocabulary harmonization, relationship between terms (BT/NT, USE/UF, RT), no limits to number of terms, alternative labels, levels of hierarchy, etc., systematic or alphabetic navigation, complete export in XML format (Zthes, TopicMaps, MADS, Dublin Core,VDEX, BS 8723, SiteMap, SQL), complete export in RDF format, complete export in txt, scope notes, historical and bibliographical notes, user management, terms and user supervision, duplicates terms control, free terms control, quality assurance functions (Duplicates and free terms, ilegal relations), multilingual interface, easy install, utility to import thesauri from tabulated textfiles, unique code for each term, terminology mapping with multilingual, term reports for editors, workflow like candidate, accepted and rejected terms, allow to create user-defined relationships, allow to define published and hidden labels, relationships between terms and web entities, export to WXP (WordPress XML) and import and export data in Skos-core (**Figure 6**).

**Figure 6.** *Visual vocabulary interface in TemaTres.*
