Mastering interoperability in a computing environment consisting of different operating systems and hardware architectures is a key requirement which faces system engineers building distributed information systems. Distributed applications are a necessity in most central application sectors of the contemporary computerized society, for instance, in office automation, banking, manufacturing, telecommunication and transportation. This book focuses on the techniques available or under development, with the goal of easing the burden of constructing reliable and maintainable interoperable information systems. The topics covered in this book include:

• Management of distributed systems;
• Frameworks and construction tools;
• Open architectures and interoperability techniques;
• Experience with platforms like CORBA and RMI;
• Language interoperability (e.g. Java);
• Agents and mobility;
• Quality of service and fault tolerance;
• Workflow and object modelling issues; and
• Electronic commerce . The book contains the proceedings of the International Working Conference on Distributed Applications and Interoperable Systems II (DAIS'99), which was held June 28-July 1, 1999 in Helsinki, Finland. It was sponsored by the International Federation of Information Processing (IFIP). The conference program presents the state of the art in research concerning distributed and interoperable systems. This is a topical research area where much activity is currently in progress. Interesting new aspects and innovative contributions are still arising regularly. The DAIS series of conferences is one of the main international forums where these important findings are reported.

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Preface. Conference committees. Session I: Quality of Service. 1. Fault management in QoS-enabled distributed systems; S. Kätker, K. Geihs. 2. A QoS support framework for dynamically reconfigurable multimedia applications; S. Mitchell, et al. 3. Integration of quality of service in distributed object systems; J. Daniel, et al. 4. Flexible event-based threading for QoS-supporting middleware; T. Kramp, R. Koster. Session II: Invited talk. 5. An ODP approach to the development of large middleware systems; P.F. Linington. Session III: Open architectures. 6. Sovereign systems and dynamic federations; L. Kutvonen. 7. On the design of interworking reference points for information networking; T. Eckardt, et al. 8. Extending TINA to support service customization; L. Maknavicius, et al. Session IV: Invited talk. 9. An Overview of CORBA 3; J. Siegel. Session V: Frameworks and tools. 10. A component framework for the configuration management of networks; M. Wimmers, et al. 11. A flexible framework for development of component-based distributed systems; A. Solberg, et al. 12. The Lilith framework for the rapid development of secure scalable tools for distributed computing; D.A. Evensky, et al. 13. CORBA wrappers for a-posteriori management: An approach to integrating management with existing heterogeneous systems; S. Lipperts, D. Thißen. Session VI: Agents and mobility. 14. Mobile agents and security:protocols for integrity; A. Corradi, et al. 15. Invoking computational objects on mobile devices; A. Küpper, C. Linnhoff-Popien. 16. Scenario-driven design considerations for MANET protocols; J. Malinen, et al. 17. CIA &endash; A collaboration and coordination infrastructure for personal agents; F. Kargl, et al. 18. An intra- and inter-domain placement using a multicriteria method to optimize resource access in CORBA; Hua Yong Chan, B. Herrmann. Session VII: Management aspects. 19. Automated CORBA-based application management; R. Kröger, et al. 20. A configuration management facility for CORBA applications; C.M. Silveira, E.R.M. Madeira. 21. Flexible software agents for the automatic provision of PVSs in ATM networks; M.M. Cheikhrouhou, et al. 22. Multi-layer monitoring in distributed object-environments; G. Rackl. Session VIII: Language interoperability. 23. Can CORBA save a fringe language from becoming obsolete? S. Eisenbach, et al. 24. Programming language interoperability in distributed computing environments; H.-A. Jacobsen. 25. Consistent windowing interfaces in distributed heterogeneous environments; D. Owen, A. Rawsthorne. Session IX: Workflow and UML Issues. 26. Experiences with business object-based workflow support; A. Schill, C. Mittasch. 27. A process decomposition technique for distributed workflow management; G. Piccinelli. 28. Constraint-oriented formal modelling of OO-systems; G. Graw, et al. Session X: Fault tolerance.