Common Modelling Slips in SKOS Vocabularies

Following our analysis of SKOS vocabularies publicly avail- able on the Web, we found several types of `irregularity' in some of the vocabularies' representation [1]. We have considered these `defects' as slips made by vocabulary engineers when authoring the vocabularies. In many cases these slips are apparently due to either syntactic error or ac- cidental misuse of the SKOS core vocabulary. In this paper, we present a typology of these slips, and describe possible patches that can be applied to deal with the problems. By `patching' these slips, vocabularies can be adjusted to conform to the SKOS standard and thus enable the usage of SKOS tools/applications.