The OpenEuropa project does not enforce a strict content architecture but provides corporate solutions used by the European Commission.
The OpenEuropa Content component provides a growing number of corporate content types intended to harmonize the content architecture across the sites of the European Commission.
Moreover, it provides RDF-based support for the corporate vocabularies published by the European Publication Office (OP).
To support the building of pages with a variety of page-level elements, the OpenEuropa Paragraphs component provides a number of Drupal paragraph types that can be used on any content type. Combined with the OpenEuropa Theme, these are displayed using the Europa Component Library (ECL) style guide.