Events in Business Process Implementation: Early Subscription and Event Buffering

  • Sankalita MandalEmail author
  • Matthias Weidlich
  • Mathias Weske
Conference paper
Part of the Lecture Notes in Business Information Processing book series (LNBIP, volume 297)


Event handling is a fundamental concept for the implementation of business processes. It enables the specification of how a process communicates with its environment and how this environment influences the execution of a process. However, even feature-rich languages for process specification such as BPMN are severely limited in their event handling semantics. They largely neglect the design choices to be made when deciding on when to subscribe to event sources and how to retrieve events for a particular process instance. In this paper, we therefore propose a model for event handling in business processes that is grounded in explicit subscriptions and event buffering. This model is integrated in BPMN using its extension mechanism and comes with formal execution semantics. Based on the latter, we further show how existing techniques for verification and adapter synthesis can be leveraged to analyse the interactions of a business process. Finally, we demonstrate the feasibility of our event handling model by means of an implementation in Camunda, an open-source process engine.


Process implementation Event processing Event subscription BPMN 



We are grateful for comments provided by Jan Sürmeli in the course of this work. The work is partially funded by the German Research Foundation (DFG) under grant agreement number WE 4891/1-1.


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Sankalita Mandal
    • 1
    Email author
  • Matthias Weidlich
    • 2
  • Mathias Weske
    • 1
  1. 1.Hasso Plattner Institute at the University of PotsdamPotsdamGermany
  2. 2.Department of Computer ScienceHumboldt-Universität zu BerlinBerlinGermany

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