DDI-CDI-Workflow description of the EOSC Future WP6 Task 3, Science Project 9 ‘Climate Neutral and Smart Cities’

The paper focuses on the technical workflow description of EOSC Future’s Science Project 9 'Climate Neutral and Smart Cities', using reputable data sources such as the European Social Survey (ESS), the European Environmental Agency (EEA), and Copernicus ERA5. A significant contribution of this project to the European Open Science Cloud (EOSC) is its demonstration of cross-domain data integration using the DDI-CDI metadata standard. This serves as a practical example of how the DDI-CDI Process model can offer a standardised methodology for detailing integration processes, thereby ensuring clarity for researchers dealing with integrated data and computed variables. The paper outlines the key elements of the CDI-Process model selected for this approach, which includes around 10 classes such as 'Activity,' 'Step,' and 'Parameter.' These classes form the structural framework for the data integration steps. Additionally, a tool developed under the project visualises the entire workflow as outlined in the CDI workflow description