Workflow management systems allow the users to develop complex applications at a higher level, by orchestrating functional components without handling the implementation details. Although a wide range of workflow engines are developed in enterprise environments, the open source engines available for scientific applications lack some functionalities or are too difficult to use for non-specialist...

With the increasing number of datasets encountered in imaging studies, the increasing complexity of processing workflows, and a growing awareness for data stewardship, there is a need for managed, automated workflows. In this paper, we introduce Fastr, an automated workflow engine with support for advanced data flows. Fastr has built-in data provenance for recording processing trails and ensuri...

We present a nature-inspired rule-based workflow platform capable of self adaptation by following an eventcondition-action approach and by integrating a dynamic resource selection relying on rule based scheduling heuristics. A language for workflows that is simple and easy to understand is introduced. The language also supports task semantics and ontology definition.

Aufgrund der starken Zunahme internetbasierter E-BusinessAktivitäten werden Sprachen für die Modellierung von E-Business-Prozessen immer wichtiger. Ziel der Modellierung ist die formale Darstellung der organisationsübergreifenden Prozesse und aller prozeßrelevanten Objekte. Zur integrierten Modellierung von E-Business-Prozessen und den prozeßrelevanten Dokumenten wird daher eine neue Variante h...

Despite the great effort devoted to the development of Workflow models and Workflow Management Systems during the last decade, a strong foundation about workflow development is still to come. Assuming that a workflow is a complex software product, in this paper we argue that the principles and techniques of software development — in particular, methodological concerns— can help in the developme...

Workflows are activities involving the coordinated execution of multiple tasks performed by different processing entities, mostly in distributed heterogeneous environments which are very common in enterprises of even moderate complexity. In current commercial workflow systems, the workflow scheduler is a single centralized component. A distributed workflow enactment service on the other hand sh...

Mussel farm product quality remains a challenging problem for operational marine science. In an operational scenario, the model chain, orchestrated in a workflow fashion, produces a huge amount of predicted spatially-referenced (big) data. These workflow components have been integrated into the Framework to Advance Climate, Economic, and Impact Investigations with Information Technology (FACEIT...

The dynamic nature and the geographic distribution of scientific resources, require flexible and adaptive computational environment where an in-silico experiment can be executed as a workflow of activities. In this paper, we propose a software environment to dynamically generate domain-specific, agent-based workflow engines from workflow specifications. The workflow engine is a proactive multia...

Under a centralized workflow model, distributed data transfer between consective services in a Web service workflow can save network bandwidth and avoid the centralized workflow engine being overloaded. The proposed Web Service Data Forwarding(WSDF) framework harnesses the Web Service Resource Framework(WSRF) to meet this requirement. WSDF compliant service in a workflow can forward the result ...