The step-by-step process of defining the model included:
- Analysis of international metadata schemas (document in Czech language) – to determine whether there was an existing schema that could be adopted as the model, or at least serve as a foundation to be subsequently extended or adapted to the needs of the Czech RDI (VaVaI) community,
- Identification of the needs of the Czech community (survey-based; survey results were published as a separate output, in Czech language),
- Requirements for dataset identification (e.g., mandatory metadata when requesting a DOI identifier, etc.),
- Established standards and good practices in research data management,
- Technical solutions and functions of the National Metadata Directory (NMA),
- Possible interoperability with other systems beyond the National Data Infrastructure (NDI).
The individual steps in defining the foundational model were consulted with the EOSC CZ Metadata Working Group, the NMA developers, developers of selected repository platforms within the NDI (Invenio RDM, CLARIN-DSpace, and ASEP-ARL), as well as representatives from the open data community and the National Open Data Catalogue (NKOD).
Based on all inputs and collected materials, it was evaluated that it would not be suitable to fully adopt any single metadata schema. Instead, a new metadata profile was created, derived from existing selected schemas DCAT-AP and DataCite, and complemented with elements from DCAT-AP-CZ and Dublin Core.
The development of the Czech Core Metadata Model for Research Data (CCMM) itself, which began in July 2024, took place in several phases:
- Conceptual modelling,
- Vocabulary creation,
- Application profile creation,
- Generation of documentation and technical artefacts.