Contents.- List of Abbreviations.- Introduction: The Challenge of Interoperability and Complexity in European Civil Proceedings Online; Francesco Contini and Giovan Francesco Lanzara.- Part I Beyond Interoperability.- Chapter 1 The Circulation of Agency in Judicial Proceedings: Designing for Interoperability and Complexity; Giovan Francesco Lanzara.- Chapter 2 Developing Pan-European e-Government Solutions. From Interoperability to Installed Base Cultivation; Ole Hanseth.- Chapter 3 How the Law can make it Simple: Easing the Circulation of Agency in e-Justice; Francesco Contini and Richard Mohr.- Part II Building e-justice: National and European Experiences.- Chapter 4 Law, Technology and System Architectures: Critical Design Factors for Money Claim and Possession Claim OnLine in England and Wales; Giampiero Lupo.- Chapter 5 Functional Simplification through Holistic Design: The COVL Case in Slovenia; Gregor Strojin.- Chapter 6 The Piecemeal Development of an e-Justice Platform: The CITIUS Case in Portugal; Paula Fernando, Concei??o Gomes and Diana Fernandes.- Chapter 7 Pushing at the Edge of Maximum Manageable Complexity: The case of 'Trial OnLine' in Italy; Davide Carnevali e Andrea Resca.- Chapter 8 The Making of Pan-European Infrastructure: From the Schengen Information System to the European Arrest Warrant; Marco Velicogna.- Chapter 9 Searching for Maximum Feasible Simplicity: the Case of e-Curia at the Court of Justice of the European Union; Francesco Contini.- Part III Complexity and the Circulation of Agency in Transborder Civil Proceedings.- Chapter 10 Legal Interoperability in Europe: An Assessment of the European Payment Order and the European Small Claims Procedure; Marco Mellone.- Chapter 11 Testing Transborder Civil Procedures in Practice: Findings from Simulation Experiments with the European Payment Order and the European Small Claims Procedure; Gar Yein Ng.- Chapter 12 Building Semantic Interoperability for European Civil Proceedings Online; Marta Poblet, Josep Suquet, Antoni Roig and Jorge Gonz?lez-Conejero.- Chapter 13 Coming to Terms with Complexity Overload in Transborder e-Justice: The e-CODEX Platform; Marco Velicogna.- Chapter 14 Let Agency Circulate: Architectures and Strategies for Pan-European e-Justice; Francesco Contini.- About the Authors.- Index.