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Jadex Event Stream Processing Architecture
Projektbeschreibung
The Jadex Event Stream Processing Architecture (JESPA) is a middleware specifically designed to detect and process complex events within streams of primitive events. Such primitive events may originate from RFID systems or any other kind of physical or virtual sensor or sensor network, and usually contain raw sensor measurements, such as an EPC read by an RFID reader.

In order to detect complex relationships between multiple primitive events, possibly spanning different event streams, event stream processing (ESP) and complex event processing (CEP) techniques are applied. For this purpose, the JESPA middleware incorporates a high-performance, open source event processing engine (Esper), which allows to define complex event patterns using an SQL-like event-processing language.

Moreover, the middleware allows to individually pre-process the incoming events before they are forwarded to the complex event processing engine, and to postprocess the resulting generated complex events. For this purpose, a multitude of standard services (e.g., classification, persistence, augmentation) are offered by the middleware, and may be complemented by a producer or consumer by injecting additional user-defined services.

For the orchestration of services within the middleware, executable BPMN-based processing workflows are used. An example of such postprocessing is the escalation handling, during which arbitrary service agents may be invoked in order to react to undesired conditions. The post-processing stage may also be used to create individually tailored application-level events (so called context-based views), which only contain relevant information in a desired format, by invoking conversion, translation, and encoding services. The results can then directly be further processed by enterprise systems, such as supply-chain management and workflow-management systems, intelligent objects, or web-based services. This way, event producers (RFID/sensor readers) and event consumers (like users or enterprise systems) do not need to adapt their business logic to the middleware's functionality and data formats, but may abstract from how events are generated and how actions are carried out, benefiting from the middleware's ability to conduct the overall processing.

Further Information can be found on the JESPA Homepage

Beteiligte Personen
Publikationen im Projekt
2012
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In: Smart Mobile Apps, Kapitel 20
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Dirk Bade, Daniel Gleim
In: Tagungsband zum 9. GI/KuVS-Fachgespräch Ortsbezogene Anwendungen und Dienste
2011
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Dirk Bade, Roman Puszies
In: Tagungsband zum 7. GI/KuVS-Fachgespräch
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Steffen Kunz, Benjamin Fabian, Holger Ziekow, Dirk Bade
In: Enterprise Distributed Object Computing Conference Workshops (EDOCW), Helsinki
2010
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In: Computer Journal, Special Issue on Agent Technologies for Sensor Networks
2009
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In: 8. GI/ITG KuVS Fachgespräch Sensornetze, Hamburg, Germany
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Peter Ibach, Dirk Bade, Steffen Kunz
In: Verwaltung, Analyse und Bereitstellung kontextbasierter Informationen, Workshop, 39. GI-Jahrestagung, 2009, Lübeck, Germany
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In: Third International Workshop on Agent Technology for Sensor Networks (ATSN-09), Budapest, Hungary
Studentische Arbeiten im Projekt
2013
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Diplomarbeit von Nicolas Haase
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Bernd Page
2012
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Masterarbeit von Cristina Murgu
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Jianwei Zhang
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Bachelorarbeit von Daniel Gleim
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Hannes Federrath
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Bachelorarbeit von Julian Kalinowski
Betreuer: Dirk Bade, Alexander Pokahr     Gutachter: Winfried Lamersdorf
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Bachelorarbeit von Waldemar Spitschak
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Tilo Böhmann
2011
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Masterarbeit von Richard Günther
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Tilo Böhmann
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Bachelorarbeit von Pascal Folleher
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Jianwei Zhang
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Diplomarbeit von Hai-Minh Le
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Norbert Ritter
2010
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Bachelorarbeit von Roman Puszies
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf
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Bachelorarbeit von Christoph Koch
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Daniel Moldt
2009
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Bachelorarbeit von Alex Schajew
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf, Klaus Dieter Heidtmann
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Baccelauriatsarbeit von Jan Lueke
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf
Laufend
Diplomarbeit von Timo Schmoecker
Betreuer: Dirk Bade     Gutachter: Winfried Lamersdorf