Workflow management for soft real-time interactive applications in virtualized environments

  • Authors:

  • Spyridon Gogouvitis;Kleopatra Konstanteli;Stefan Waldschmidt;George Kousiouris;Gregory Katsaros;Andreas Menychtas;Dimosthenis Kyriazis;Theodora Varvarigou

  • Affiliations:

  • National Technical University of Athens, Greece;National Technical University of Athens, Greece;Digital Film Technology, Germany;National Technical University of Athens, Greece;National Technical University of Athens, Greece;National Technical University of Athens, Greece;National Technical University of Athens, Greece;National Technical University of Athens, Greece

  • Venue:
  • Future Generation Computer Systems
  • Year:
  • 2012

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Abstract

Many applications, especially the ones implementing multi-user collaborative environments, fall within the context of soft real-time systems in which only small deviations from timing constraints are allowed. The advancements in distributed computing have made it possible to follow a service oriented approach, taking advantage of the benefits this provides. In this context, applications consist of soft real-time critical application service components that interact with each other to provide the corresponding application functionality, forming application workflows. In this paper we present a new architectural design and implementation of a Workflow Management approach. This approach covers enacting soft real-time application service components according to a workflow description language, synchronizing the application components, monitoring the execution and reacting to events within a distributed virtualized environment. We also demonstrate the operation of the implemented mechanism and evaluate its effectiveness using an application scenario with soft real-time interactivity characteristics, namely Film post-production, under realistic settings.