Reengineering business processes does not stop at individual organisations’ boundaries. Joint business processes that stretch across two or several companies are gaining ground. In contrast to simple data exchange between supply chain partners, joint processes mean continuous data flows where the required data is automatically made available to all those involved according to their individual needs. Implementation of joint business processes demands a higher design and organisational effort than simple electronic data exchange between establishments. Accordingly it is practised by a smaller number of establishments. However, 14% of EU10 establishments are involved and a further 18% have actual plans for implementation over the next 2 years. Growth rates here are higher than those for data exchange with suppliers/clients.