Data Spaces and Communities of Interest (COIs) are encouraged to develop representations that reflect their understanding of data. These representations should be shared across communities to facilitate common interpretation within and across domains. Controlled Semantic Reference Models combine vocabularies, thesauri, taxonomies, and ontologies to achieve this goal. Controlled vocabularies define terms used within a community to describe data assets, typically ordered by name or relevant criteria. Thesauri group related terms, aiding translation services by clustering semantically equivalent terms. Taxonomies establish parent-child relationships, creating a hierarchical order between terms for enhanced data discovery. Ontologies, the most comprehensive, define relationships between terms and include attributes and rules (axioms) for expressing complex relationships. The use of ontologies is essential for automated semantic processing. Any community establishing these semantic resources should publish them centrally and align with the NATO Common Cross Community of Interest Semantic Reference Model (CXCSRM) to promote understanding and reuse. The establishment of CXCSRM is crucial for improving interoperability by providing a common core vocabulary for information exchange across domains and functional areas. While domain-specific data models persist, CXCSRM ensures semantic consistency, fostering cross-domain information exchange. Its implementation is foundational to the Data Strategy, requiring governance, standardization, and organizational changes. To realize the CXCSRM vision, actions include establishing joint governance with the Multilateral Interoperability Programme (MIP), resource management, and inter-organizational coordination. Continuous collaboration is essential for the success of the CXCSRM initiative, vital for enhancing cross-domain information accessibility and sharing within NATO.