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<h2>Once-Only Technical System Projectathon #2 Insights</h2>
<p>On 14-16 June 2023, the <a href="https://ec.europa.eu/digital-building-blocks/sites/display/OOTS/Projectathon2" target="_blank">second Once-Only Technical System Projectathon</a> brought together all 27 EU Member States for a marathon of peer-to-peer interoperability testing. This was the second of three such events planned to take place in 2023. Projectathons facilitate crucial development, testing and eventual deployment of national Once-Only Technical System implementations.</p>
<p>Neutral experts, acting as monitors, supervised and verified the tests carried out over the three days. The Once-Only Technical System Projectathons are not pass/fail type examinations. Rather, they are a collaborative exercise in understanding technical and operational issues and working together to solve them.</p>
<p>The June Projectathon was an excellent opportunity for national implementers to learn, help each other and to assess their current state of play regarding their Once-Only Technical System developments. In addition to testing, Member States experts collaborated on improving the Once-Only Technical System <a href="https://twitter.com/EU_OnceOnly/status/1669369947095482368" target="_blank">user-experience</a>, learned about <a href="https://twitter.com/EU_OnceOnly/status/1669323727769665542" target="_blank">lifecycle management updates</a> to the Once-Only Common Services, the use of eIDAS eID in realising this System, related systems and defining operational arrangements for the Once-Only domain.</p>
<p>The Commission will publish an event report for the June Projectathon shortly. In the meantime, you can consult the <a href="https://ec.europa.eu/digital-building-blocks/sites/display/OOTS/Commission+publishes+event+report+for+April+2023+Once-Only+Technical+System+Projectathon" target="_blank">April Once-Only Technical Projectathon event report</a>, summarising key results from the testing that cook place from 19-21 April 2023.</p>
<p>On the final day of this Projectathon, the ‘OOTS & EU DI Wallet Synergies and Interoperability Contact Group’ met to discuss the topic of power and mandates and data sharing in the context of cross-border identification using the European framework for digital identity (known as eIDAS).</p>
<p>To learn more about how the Once-Only Technical System will contribute to Europe’s Single Market, visit the <a href="https://ec.europa.eu/once-only-hub" target="_blank">Once-Only Hub</a>.</p>
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