> For the complete documentation index, see [llms.txt](https://docs.ont.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ont.io/decentralized-identity-and-data/ddxf/use-cases.md).

# Use Cases

- [E-Shops](https://docs.ont.io/decentralized-identity-and-data/ddxf/use-cases/e-shops.md): Data marketplaces for exchange between data providers and potential consumers