timer expires before an acknowledgementhasbeen received, the transmitter retransmits packets that havebeen sent but are as yet notacknowledged. It may also be possibleforpacketsto be lost due to routers in networks discarding packets when congested.
Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.
Designing a Workflow System Using Coloured Petri Nets.- From Requirements via Colored Workflow Nets to an Implementation in Several Workflow Systems.- Soundness of Workflow Nets with Reset Arcs.- Parameterised Coloured Petri Net Channel Models.- On Modelling and Analysing the Dynamic MANET On-Demand (DYMO) Routing Protocol.- Modelling Mobile IP with Mobile Petri Nets.- A Discretization Method from Coloured to Symmetric Nets: Application to an Industrial Example.- The ComBack Method Revisited: Caching Strategies and Extension with Delayed Duplicate Detection.- Comparison of Different Algorithms to Synthesize a Petri Net from a Partial Language.- On Bisimulation Theory in Linear Higher-Order ?-Calculus.
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Kartoniert / Broschiert. Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Designing a Workflow System Using Coloured Petri Nets.- From Requirements via Colored Workflow Nets to an Implementation in Several Workflow Systems.- Soundness of Workflow Nets with Reset Arcs.- Parameterised Coloured Petri Net Channel Models.- On Modellin. Codice articolo 5044439
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, Germania
Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -AccordingtoHolzmann [14], protocol speci cationscomprise veelements: the service the protocol provides toits users; the set of messages that are exchanged between protocol entities; the format of each message; the rules governingm- sage exchange (procedures); and the assumptionsabout the environment in which the protocol is intended tooperate. In protocol standards documents, information related to the operatingenvironment isusually writteninformally andmayoccur in several di erentplaces [37]. This informal speci cation style canlead to misunderstandings andpossibly incompatible implementations. In contrast,executableformalmodelsrequireprecisespeci cations oftheoperating environment. Ofparticularsigni canceisthecommunicationmediumorchannel over which the protocol operates. Channelscan havedi erent characteristics depending on the physical media (e. g. optical bre, copper, cable orunguided media (radio)) they employ. The characteristics also depend on the levelof the protocol inacomputer protocol architecture. Forexample, the link-leveloperates over a singlemedium,whereas the network, transport andapplication levelsmayoperate over a network,or network of networks such as the Internet,which couldemploy several di erent physical media. Channels (such as satellite links) can be noisy resulting in bit errors in packets. To correct biterrors in packets, many importantprotocols (such the Internet s TransmissionControl Protocol [27]) use CyclicRedundancy Checks (CRCs)[28] to detect errors. On detectingan error,the receiver discards the packet andrelies on the sender to retransmit itforrecovery,known as Au- maticRepeatreQuest(ARQ)[28]. Thisisachievedbythereceiveracknowledging the receipt of good packets, andby the transmitter maintainingatimer. When the timer expires before an acknowledgementhasbeen received, the transmitter retransmits packets that havebeen sent but are as yet notacknowledged. It may also be possibleforpacketsto be lost due to routers in networks discarding packets when congested. 296 pp. Englisch. Codice articolo 9783642048548
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Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - AccordingtoHolzmann [14], protocol speci cationscomprise veelements: the service the protocol provides toits users; the set of messages that are exchanged between protocol entities; the format of each message; the rules governingm- sage exchange (procedures); and the assumptionsabout the environment in which the protocol is intended tooperate. In protocol standards documents, information related to the operatingenvironment isusually writteninformally andmayoccur in several di erentplaces [37]. This informal speci cation style canlead to misunderstandings andpossibly incompatible implementations. In contrast,executableformalmodelsrequireprecisespeci cations oftheoperating environment. Ofparticularsigni canceisthecommunicationmediumorchannel over which the protocol operates. Channelscan havedi erent characteristics depending on the physical media (e. g. optical bre, copper, cable orunguided media (radio)) they employ. The characteristics also depend on the levelof the protocol inacomputer protocol architecture. Forexample, the link-leveloperates over a singlemedium,whereas the network, transport andapplication levelsmayoperate over a network,or network of networks such as the Internet,which couldemploy several di erent physical media. Channels (such as satellite links) can be noisy resulting in bit errors in packets. To correct biterrors in packets, many importantprotocols (such the Internet s TransmissionControl Protocol [27]) use CyclicRedundancy Checks (CRCs)[28] to detect errors. On detectingan error,the receiver discards the packet andrelies on the sender to retransmit itforrecovery,known as Au- maticRepeatreQuest(ARQ)[28]. Thisisachievedbythereceiveracknowledging the receipt of good packets, andby the transmitter maintainingatimer. When the timer expires before an acknowledgementhasbeen received, the transmitter retransmits packets that havebeen sent but are as yet notacknowledged. It may also be possibleforpacketsto be lost due to routers in networks discarding packets when congested. Codice articolo 9783642048548
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Taschenbuch. Condizione: Neu. Neuware -timer expires before an acknowledgementhasbeen received, the transmitter retransmits packets that havebeen sent but are as yet notacknowledged. It may also be possibleforpacketsto be lost due to routers in networks discarding packets when congested.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 296 pp. Englisch. Codice articolo 9783642048548
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