Summary: The Semantic Technologies for Archaeological Resources (STAR) project has been exploring the development of new tools andtechnologies for “semantic web” based research. The project builds upon the ontological modelling approach taken by EnglishHeritage staff, in recent years, to modelling their information and data using the CIDOC-CRM standard (ISO 21127:2006). Theontological modelling has enabled the EH archaeological teams to more explicitly identify where ‘information gaps’ exist withintheir existing information records and flow lines, which can then be bridged using an ontological information model. The datainvolved can be derived from legacy datasets, current databases, and hopefully will enable incorporation of a mapping to data yet tobe recorded in a newly implemented archaeological recording system. The aim is to provide a model for how new systems andtechnologies can be developed that enable greater interoperability and better integration of data in the rather disparate archipelagoof archaeological project information.This paper will also discuss the emerging use of the Simple Knowledge Organization System (SKOS) data model as a W3 standardfor sharing and linking knowledge organization systems via the Semantic Web. The STAR SKOS web services currently provideterm look up across the thesauri held in the system (including the EH Monuments Thesaurus and the former MDA ObjectsThesauri), along with browsing and semantic concept expansion within a chosen thesaurus. Users may browse a concept space toexplore and become familiar with specialist terminology or as part of a broader application. In combination with a search system,the services allow queries to be expanded (automatically or interactively) by synonyms or by expansion over the SKOS semanticrelationships. Expansion is based on a measure of ‘semantic closeness’.The paper will also introduce a new prototype CRM Browser web service developed by the STAR project and explore ideas forhow this prototype browser might be developed further in the future to e
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