Last update: 13/02/2024
Once-Only Technical System (OOTS)
The Once-Only Technical System (OOTS) streamlines data retrieval for cross-border procedures, enhancing trust, efficiency, and data exchange among EU public administrations and citizens. It is an EC solution.
Collaboration
Last update: 20/02/2024
eDelivery
Secure, interoperable data/document exchange across EU borders using AS4 Access Points, promoting vendor-neutral, reliable, and scalable communication for public administrations and businesses. It is an EC solution.
Reusable Software ComponentseDelivery and eInvoicing
Last update: 13/02/2024
eID
The eID Building Block enhances cross-border digital services in the EU by enabling secure electronic identification and transactions in compliance with the eIDAS Regulation, promoting interoperability, trust, and security. It is an EC solution.
Reusable Software ComponentseIdentity and eSignature
Last update: 24/04/2024
EU Digital Identity Wallet
The European Digital Idenity Framework harmonizes authentication to digital services and enables sharing relevant identity data for citizens and businesses.
SemanticsOpen Source Software+2 topics
Last update: 08/08/2025
Interoperability Test Bed
Interoperability Test Bed tests the interoperability and the conformance of your digital services. It is a free service and a reusable OSS. It is an EC solution.
ToolsOpen Source SoftwareICT
Last update: 10/04/2025
Website Evidence Collector
Website Evidence Collector is an OSS (under EUPL), streamlines privacy inspections of websites, gathering evidence like cookies, and external requests. It is an EU solution (EDPS).
ICT securityOpen Source SoftwareReusable Software Components
Last update: 13/02/2024
eSignature
The DIGITAL eSignature Building Block enables electronic signatures in compliance with the eIDAS Regulation, supporting secure, cross-border digital interactions for public services, businesses, and citizens. It is an EC solution.
Reusable Software ComponentseIdentity and eSignature
Last update: 13/02/2024
eInvoicing
The eInvoicing Building Block boosts EU eInvoicing, adhering to EU standards for economic benefits. It aids public/private sectors in digital transition, offering support services for smooth adoption of eInvoicing. It is an EC solution.
Reusable Software ComponentseDelivery and eInvoicing
IN THE SPOTLIGHT
Last update: 16/07/2025
The role of open digital solutions in Interoperability
Through extensive mapping of existing solutions, gap analysis, and promoting collaboration, INVEST supports the practical implementation of interoperability policies.
eInclusionInteroperable Europe policyEuropean Policies
Last update: 02/07/2025
Licensing Assistant – How to check compatibility between two licences
This article showcases how to use the compatibility checker.
Collaboration
19/11/2025
Virtual event
iTalks on Government Innovation – How to Open Data?! Perspectives and Learnings from Germany’s Federal Ministry of the Interior
Open data is a cornerstone of transparent, innovative, and efficient governance. But what does it actually take to make data findable, accessible, interoperable, and reusable (FAIR) in the public…
CollaborationDigital-ready policymaking+3 topics
Latest News
Last update: 08/08/2025
ITB v1.27.2 released
Release 1.27.2 of the Interoperability Test Bed software is now available
ICTOpen Source Software+2 topics