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Concurrency in Dependable Computing by Jonathan Burton, Maciej Koutny, Giuseppe Pappalardo, Marta

By Jonathan Burton, Maciej Koutny, Giuseppe Pappalardo, Marta Pietkiewicz-Koutny (auth.), Paul Ezhilchelvan, Alexander Romanovsky (eds.)

Concurrency in accountable Computing makes a speciality of concurrency similar matters within the sector of responsible computing. mess ups of procedure parts, be devices or software program modules, may be seen as bad occasions taking place simultaneously with a collection of ordinary process occasions. reaching dependability accordingly is heavily on the topic of, and likewise merits from, concurrency thought and formalisms. this helpful courting appears to be like to appear into 3 strands of work.
software point structuring of concurrent actions. recommendations equivalent to atomic activities, conversations, exception dealing with, view synchrony, etc., are valuable in structuring concurrent actions so that it will facilitate makes an attempt at dealing with the consequences of part disasters.
Replication triggered concurrency administration. Replication is a customary process for reaching reliability. reproduction administration basically contains making sure that replicas understand concurrent occasions identically.
program of concurrency formalisms for dependability coverage. Fault-tolerant algorithms are tougher to make sure than their fault-free opposite numbers considering that the effect of part faults at each one kingdom have to be thought of as well as legitimate country transitions. CSP, Petri nets, CCS are beneficial instruments to specify and be sure fault-tolerant designs and protocols.
Concurrency in accountable Computing explores many major matters in all 3 strands. To this finish, it's composed as a suite of papers written through authors famous of their respective components of study. to make sure caliber, the papers are reviewed by way of a panel of no less than 3 specialists within the suitable area.

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2 Enforcement The dependability implementation, then, consists of enforcement of each of the three model predicates. Our implementation essentially {re)satisfies each predicate upon its violation. The enforcer for Activity runs a protocol that diagnoses and repairs failed replicas. The enforcer for Uniqueness implements a "weak leader election" protocol; in this protocol, only a unique replica knows it is the leader (the term 'weak' is used in the sense that the other nodes need not know the identity of the leader).

Gorrieri, "Vertical Implementation," to be published in Information and Computation, 2002. [14] A. W. Roscoe, The Theory and Practice of Concurrency, PrenticeHall, 1998. [15] H. Schepers and J. Hooman, "Trace-based Compositional Reasoning About Fault-tolerant Systems," Proc. PARLE'93, Springer, LNCS 694, 1993. com Abstract Distributed systems are notoriously subject to complex faults, of which some are unanticipated. Towards dealing with the problem of unanticipated faults, we describe in this paper a model-based approach to the design of dependability.

15] H. Schepers and J. Hooman, "Trace-based Compositional Reasoning About Fault-tolerant Systems," Proc. PARLE'93, Springer, LNCS 694, 1993. com Abstract Distributed systems are notoriously subject to complex faults, of which some are unanticipated. Towards dealing with the problem of unanticipated faults, we describe in this paper a model-based approach to the design of dependability. e. abstract descriptions of systems, our approach offers a potentially low-cost alternative to handling rare faults in a case-by-case manner, while allowing common faults to be handled individually.

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