Tolle, KarstenKarstenTolleKiauleikis, ValentinasValentinasKiauleikisKnoll, GeraldGeraldKnollGuglielmina, ClaudiaClaudiaGuglielminaArezza, AlessandraAlessandraArezza2022-03-102022-03-102007https://publica.fraunhofer.de/handle/publica/3550562-s2.0-67650249245Taking Lithuania as an example, we mention and explain the main barriers for interoperability between different SME's. There are barriers valid for any SME and other barriers that are special for Lithuania and other New Member States. Inside this document we explain how we address these barriers with technologies like UBL and by different modules and their interplay; building a federated integration approach. As underlying technology to link these modules we are using an Enterprise Service Bus. Special to our solution is that human activities are supported by the modules during the B2B process in such a way that there is still enough freedom for them to interact directly with other trading partners, e.g. via phone, without messing up the process.enE-businessenterprise application integrationEAIInteroperabilitätKMU (Kleine und mittlere Unternehmen)Small and Medium Sized Enterprises (SME)Universal Business Language (UBL)B2Bconference paper