<p dir="ltr">This report describes completed milestones and outcomes for the <i>Capacity building for machine-actionable vocabularies (Activity 4)</i><i> </i>of the <i>Case studies on pragmatic interoperability project</i> funded by the <i>RDA / EOSC Future Call for Interoperability Framework Contributions</i>. The project was active March–September 2023</p><h3>Description of the activity</h3><p dir="ltr">A collection of captured and systematically organised semantic interoperability use cases to support implementation and adoption across EOSC. The activity originated from the <a href="https://www.eosc.eu/advisory-groups/semantic-interoperability">Semantic Interoperability Task Force of the EOSC Association (EOSC-A TF SI)</a> and the talk <a href="https://doi.org/10.17044/scilifelab.21542313"><i>Case studies and use cases as means of effectively demonstrating value and engaging stakeholders</i></a> presented with ELIXIR for the <a href="https://symposium22.eoscfuture.eu/symposium/engagement-of-research-communities-and-service-providers-in-eosc/">Engagement of research communities and service providers in EOSC session at EOSC Symposium 2022</a>.</p>