Publications

From event-driven workflows towards a posteriori computing

Abstract

The integration of content-based event notification systems with workflow management is motivated by the need for dynamic, data-driven application systems which can dynamically discover, ingest data from, and interact with other application systems, including physical systems with online sensors and actuators. This requires workflows that can be dynamically reconfigured on-the-fly on the receipt of important events from both external physical systems and from other computational systems. Such a capability also supports fault tolerance, i.e., reconfiguring workflows on the receipt of failure events. When decentralized workflow management is considered, the need for a workflow agent framework becomes apparent. A key observation here is that systems providing truly autonomic, reconfigurable workflows cannot rely on any form of a priori knowledge, i.e., static information that is “compiled-in” to an …

Date
2006
Authors
Craig A Lee, B Scott Michel, Ewa Deelman, Jim Blythe
Journal
Future Generation Grids: Proceedings of the Workshop on Future Generation Grids November 1–5, 2004, Dagstuhl, Germany
Pages
3-28
Publisher
Springer US