Slices allow users to interact (both via API or UI) only with a subset of ontologies in Biodivportal. If browsing the slice, all the portal features will be restricted to the chosen subset, enabling users to focus on their specific use cases. On BiodivPortal, slices and groups are synchronized, so every group has a corresponding slice displaying only the ontologies from that group.
The OntoPortal Alliance (https://ontoportal.org/) is a consortium of research and infrastructure teams dedicated to promoting the development of ontology repositories and semantic artefact catalogues based on the open, collaboratively developed OntoPortal software (https://github.com/ontoportal). Hereafter are the current public and open repositories built with the technology maintained by the Alliance.