{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T16:54:01Z","timestamp":1757609641158,"version":"3.44.0"},"reference-count":0,"publisher":"IOS Press","isbn-type":[{"type":"electronic","value":"9781643686158"}],"license":[{"start":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T00:00:00Z","timestamp":1756857600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9,3]]},"abstract":"<jats:p>Introduction: The Medical Informatics Initiative (MII) aims to enable cross-site secondary use of clinical data in Germany using a FHIR-based Core Data Set (CDS). However, current FHIR Implementation Guides (IG) often lack actor-specific guidance, leading to inconsistent interpretations and implementations. Methods: This technical case report explores the use of FHIR Implementation Obligations to clarify responsibilities and expected system behavior within the MII infrastructure. Obligations were modeled using the FHIR obligation extension and ActorDefinition resources, applied to the Patient profile from the CDS Person module. A prototype IG was generated using the HL7 FHIR IG publisher tooling. Results: Obligations were defined and rendered for multiple actors \u2013 such as Data Integration Centers (DIC) and the Health Research Data Portal (FDPG) \u2013 across selected Patient profile elements. Obligations were also linked to specific operations, enabling precise workflow targeting. The implementation improved the explicitness of responsibilities that were previously only implied. Discussion: The study demonstrates that obligations enhance the clarity of FHIR IGs. However, limitations remain: the MII\u2019s current IG tooling does not yet support obligations, and conformance testing was not addressed. Further work is needed to standardize ActorDefinition resources, align obligations across modules, and develop validation tooling to realize the full potential of obligation-driven specifications.<\/jats:p>","DOI":"10.3233\/shti251401","type":"book-chapter","created":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T10:24:51Z","timestamp":1756895091000},"source":"Crossref","is-referenced-by-count":0,"title":["Improving Requirements Documentation in the Medical Informatics Initiative Core Data Set Using FHIR Obligations \u2013 Lessons Learned"],"prefix":"10.3233","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2068-7765","authenticated-orcid":false,"given":"Julian","family":"Sa\u00df","sequence":"first","affiliation":[{"name":"Berlin Institute of Health at Charit\u00e9 \u2013 Universit\u00e4tsmedizin Berlin, Berlin, Germany"}]},{"given":"Sylvia","family":"Thun","sequence":"additional","affiliation":[{"name":"Berlin Institute of Health at Charit\u00e9 \u2013 Universit\u00e4tsmedizin Berlin, Berlin, Germany"}]}],"member":"7437","container-title":["Studies in Health Technology and Informatics","German Medical Data Sciences 2025: GMDS Illuminates Health"],"original-title":[],"link":[{"URL":"https:\/\/ebooks.iospress.nl\/pdf\/doi\/10.3233\/SHTI251401","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T10:24:51Z","timestamp":1756895091000},"score":1,"resource":{"primary":{"URL":"https:\/\/ebooks.iospress.nl\/doi\/10.3233\/SHTI251401"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9,3]]},"ISBN":["9781643686158"],"references-count":0,"URL":"https:\/\/doi.org\/10.3233\/shti251401","relation":{},"ISSN":["0926-9630","1879-8365"],"issn-type":[{"type":"print","value":"0926-9630"},{"type":"electronic","value":"1879-8365"}],"subject":[],"published":{"date-parts":[[2025,9,3]]}}}