Data Models -

Summary

This chapter of the technical design documents address the semantic interoperability challenges when designing the  SDG Once-Only Technical System and ensuring its interconnection with the EU Member States' IT systems and EU level systems. It currently contains a single section:

  • The metholodogy supports the process of creating and maintaining evidence data models.  It will be revamped to include existing data models and controlled vocabularies. The work done in the past years under the ISA² programme and its action SEMIC served as a basis for the methodology. This methodology is based on best practices and has been tested with certain types of evidence by a working group of Member State representatives.  

In the future, this chapter will be extended to cover:

  • Governance approach.
  • Analysis of synergies with related systems and reuse of some existing data models and schemas.  

The SDG regulation does not mandate use of (only) structured evidence types and does not provide a mandate to harmonize. The evidence exchange feature documented in chapter 4 consists of a flow of Messages based on the Evidence Exchange Data Model (EDM), which comprises the EDM Request (Request from Evidence Requester to Evidence Provider for certain data or documents) and the EDM Response (Response from Evidence Provider to Evidence Requester to deliver the requested data or documents). The Query Model is fully documented and supports document-based queries. The Exchange Data Model of evidence exchange is a light-weight generic mechanism to support the exchange of any type of evidence. It facilitates the automated exchange of unstructured and structured types of evidence.

The content of this chapter is structured in the following sub-chapters:

Change log

For this release, the changes for all chapters are combined at the top level.

License

The content of this chapter is licensed under European Union Public Licence (EUPL) version 1.2.

Copyright European Union, 2023.


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