Coordination system

Electrical computers and digital processing systems: interprogra – Interprogram communication using message – Object oriented message

Reexamination Certificate

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Details

C718S101000

Reexamination Certificate

active

06848109

ABSTRACT:
A peer-to-peer coordination system of distributed programs, services, and data is provided in a computer network where coordination servers run and serves local software systems. Some shared objects are communication objects to exchange messages and transactions. Only processes in reference to a communication object (administrated by replication strategies) are granted access via the local coordination server. The local software systems are capable of controlling transactions; creating, reading, and writing of communication objects; creating and supervising uniquely identified processes. Coordination servers have identical basic functionality for distributed object, transaction and process management, and taken together, form a global operating system. The network operates like a single global super computer and new processes and sites are dynamically added. The updateable objects has a non-resettable logical time stamp, is capable of storing data, and are coordinated by an optimistic concurrency control without utilizing explicit locks on the objects. The updateable object data is writeable on distributed peer nodes.

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eva Kuhn, “Fault-Tolerance for Communicating Multidatabase Transactions,” 1994, p. 1-10.*
Alexanger Forst, eva Kuhn, Herbert Pohlai and Konrad Schwarz, “Logic Based and Imperative Coordination Languages,” 1994.*
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Eva Kuhn, “Fault-Tolerance for Communicating Multidatabase Transactions”, Proceedings of the Twenty-Seventh Hawaii International Conference on System Sciences, vol. II: Software Technology ((Cat. No. 94TH0607-2), Proceedings of the Twenty-Seventh Hawaii International Conference on System Sciences, Wailea, HI, USA, 1994.
Eva Kuhn, Ahmed K. Elmagarmid, Noureddine Boudriga, “A Parallel Logic for Transaction Specification in Multidatabase Systems”, International Journal of Systems Integration, vol. 1-35 (1995).
Alexander Forst, Eva Kuhn, Herbert Pohlai, Konrad Schwarz, “Logic Based and Imperative Coordination Languages”, In the Proceedings of the PDCS'94 Seventh International Conference on Parallel and Distributed Computing Systems, ISCA, IEEE, Las Vegas, Nevada, Oct. 6-8, 1994.
Eva Kuhn, “Fault-Tolerance for Communicating Multidatabase Transactions”, Proceedings of the Twenty-Seventh Hawaii International Conference on System Sciences, (HICSS), ACM, IEEE, Jan. 4-7, Wailea, Maui, Hawaii, 1994.
Alexander Forst, Eva Kuhn, Omran Bukhres, “General Purpose Work Flow Languages”, International Journal on Parallel and Distributed Databases, special issue on Software Support for Workflow Management, Kluwer Academic Publishers, vol. 3, No. 2, Apr. 1995.

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