Business Access to Once-Only Technical System (OOTS) | Use Case

Today, access to cross-border public services often requires repeated submission of supporting documents, even when the data already exists in another Member State. While the Once-Only Technical System (OOTS) enables authorities to exchange such evidence, access is typically mediated through service providers and can be fragmented from the user perspective.

The EU Digital Identity Wallet (EUDIW) and EU Business Wallets (EBW) can improve how users access and interact with OOTS.

They can provide a more user-friendly and reliable way for representatives to identify themselves, give consent, and manage the exchange of evidence, alongside existing access channels, which will continue to exist. In addition, OOTS can be used to retrieve official documents and place them into the wallet for future reuse. This creates synergies between European infrastructures such as OOTS and eIDAS2, supporting a more efficient and reusable approach to handling business evidence across borders.

For example

A company representative wants to access a public service via the Single Digital Gateway (SDG) in another Member State. During the process, the service provider, after obtaining the representative’s consent via the wallet, requests the necessary supporting documents through OOTS from the relevant authority in another Member State. The evidence is transmitted directly to the service provider and simultaneously made available for storage in the company’s wallets for future use. This reduces the need to repeatedly collect and submit documents, while maintaining existing procedures and improving efficiency and reliability.

What we’re aiming for:

Enable the user to mix these channels of data exchange in a way most convenient to the user

Explore integration of the EUDI Wallet and Once-Only Technical System (OOTS)

Use Cases

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