Information dissemination systems are required to operate in continuous information generating environments with remarkably large user base like Stock Exchanges. Publish-subscribe paradigm provides basic architecture ...
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ISBN:
(纸本)1932415270
Information dissemination systems are required to operate in continuous information generating environments with remarkably large user base like Stock Exchanges. Publish-subscribe paradigm provides basic architecture of such information dissemination systems. However time critical information dissemination is influenced by large user bases with complex subscriptions and immense volumes of continuously generated information An effective mechanism is considered necessary to improvise the overall dissemination process in terms of resource consumption and time required for information dissemination. Typically similarity is noted in the interests of subscribers which lead to an overlap between their subscriptions. We persuade that grouping together similar subscriptions would positively affect the computation resources required for event monitoring and event dispatching process. Besides grouping, dynamically regrouping existing subscriptions is also essential to maintain the effectiveness of groups. This paper provides base line architecture for an information dissemination system;which employs dynamic regrouping of subscriptions to benefit the overall dissemination process.
the main objective of this paper is to determine the impact of securely connecting and communicating with a specific implementation of a message broker called ActiveMQ. ActiveMQ is "an open sourced implementation...
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ISBN:
(纸本)9781509024704
the main objective of this paper is to determine the impact of securely connecting and communicating with a specific implementation of a message broker called ActiveMQ. ActiveMQ is "an open sourced implementation of JMS 1.1" [1]. Using the same tools on the same hardware, the same scenarios are tested with and without encryption in order to determine what kind of performance impact encrypting the traffic has. The final results can be used as a reference point for deciding if the extra encryption layer is worth any potential performance penalty based on where both endpoints, the ActiveMQ cluster and the client, are located and the business requirements of the projects involved.
V této práci je rozebírána problematika ERP systémů a jejich hlavních cílů a principů. V návaznosti na tento rozbor je představen ERP systém proALPHA, který je dá...
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V této práci je rozebírána problematika ERP systémů a jejich hlavních cílů a principů. V návaznosti na tento rozbor je představen ERP systém proALPHA, který je dále analyzován z pohledu možností přístupu k jeho funkcionalitě z externích klientů, což je také hlavním cílem této práce. Jako část tohoto systému, jejíž funkcionalitu se budeme snažit zpřístupnit, byl zvolen modul materiálového hospodářství. Do něj budeme přistupovat přes modul INWB, který je implementován s využitím nástroje Sonic ESB, jehož problematika je rovněž předmětem této práce. Všech vytyčených cílů se podařilo úspěšně dosáhnout.
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