Create better SKOS vocabularies
From the webpage:
PoolParty SKOS Quality Checker allows you to perform automated quality checks on controlled vocabularies. You will receive a report of our findings.
This service is based on qSKOS and is able to make checks on over 20 quality issues.
You will organize uploaded vocabularies by giving a name for which you may provide different versions of the same vocabulary. This way you can easily track quality improvements over time.
You won’t need this for simple vocabularies (think schema.org) but could be useful for more complex vocabularies.