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    Item type:Publication, Access status: without files ,
    Cost-Efficient Scheduling of Elastic Processes in Hybrid Clouds
    (2015-08)
    Hoenisch, Philipp
    ;
    Hochreiner, Christoph
    ;
    Schuller, Dieter
    ;
    Schulte, Stefan
    ;
    Mendling, Jan
    Cloud computing is becoming increasingly important for executing business processes. This development contributes to a novel class of Business Process Management Systems, called eBPMS, that inherit elasticity from cloud computing. The aim of eBPMS is to improve the efficiency of process enactment, in particular regarding scalability and cost-efficiency. However, there is hardly any research that investigates scheduling for eBPMS so far. Against this background, we design an elastic scheduling approach for eBPMS and a corresponding formal problem definition in order to evaluate its data transfer capabilities - this is especially important for hybrid cloud environments. Through extensive evaluations, we are able to show that our approach reduces the total cost by a considerable share.
    Publicationtype: Conference Paper
      26
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    Towards Process Support for Cloud Manufacturing
    (IEEE, 2014-09)
    Schulte, Stefan
    ;
    Hoenisch, Philipp
    ;
    Hochreiner, Christoph
    ;
    Dustdar, Schahram
    ;
    Klusch, Matthias
    Due to increasing competitive pressure, manufacturing companies need to support flexible and scalable business processes-both on the shop floor and in their enterprise software systems. Cloud manufacturing is a recent approach to realize real-world manufacturing processes by applying well-known basic concepts from the field of Cloud computing to this domain. To implement Cloud manufacturing, it is necessary to model, enact and monitor according manufacturing processes and virtualize the single process steps. So far, Business Process Management Systems do not explicitly support Cloud manufacturing. This paper analyzes requirements regarding process enactment for Cloud manufacturing and provides a concept for an according software framework.
    Publicationtype: Conference Paper
      21
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    Workflow scheduling and resource allocation for cloud-based execution of elastic processes
    (2013-12)
    Hoenisch, Philipp
    ;
    Schulte, Stefan
    ;
    Dustdar, Schahram
    Today's extensive business process landscapes make it necessary to handle the execution of a large number of workflows. Especially if workflow steps require the invocation of resource-intensive applications or a large number of applications needs to be carried out concurrently, process owners may have to allocate extensive computational resources, leading to high fixed costs. Instead, process owners could make use of Cloud-based computational resources, dynamically leasing and releasing resources on demand, which could lead to lower costs. In the work at hand, we propose a resource-efficient workflow scheduling algorithm for business processes and Cloud-based computational resources. Through the integration into the Vienna Platform for Elastic Processes and an evaluation, we show the practical applicability and the benefits of our contributions. Specifically, we find that our approach reduces the resource demand if compared with an ad hoc approach.
    Publicationtype: Conference Paper
      23