Controlled vocabularies allow an accurate and controlled approach in describing physical and digital assets (e.g., data). One of such controlled vocabulary is INCENTIVE Controlled Vocabulary. This controlled vocabulary is a result of Metadata 4 Machine (M4M) Workshop 18 and 22 (M4M.18 and M4M.22) provided to the INCENTIVE community. sheet2rdf and OntoStack are used to build and serve INCENTIVE Controlled Vocabulary, while PURL is used to persist identifiers for the vocabulary terms: http://purl.org/incentive/