Declarative Event-Based Workflow as Distributed Dynamic Condition Response Graphs
Abstract
We present Dynamic Condition Response Graphs (DCR Graphs) as a declarative, event-based process model inspired by the workflow language employed by our industrial partner and conservatively generalizing prime event structures. A dynamic condition response graph is a directed graph with nodes representing the events that can happen and arrows representing four relations between events: condition, response, include, and exclude. Distributed DCR Graphs is then obtained by assigning roles to events and principals. We give a graphical notation inspired by related work by van der Aalst et al. We exemplify the use of distributed DCR Graphs on a simple workflow taken from a field study at a Danish hospital, pointing out their flexibility compared to imperative workflow models. Finally we provide a mapping from DCR Graphs to Buchi-automata.
Cite
@article{arxiv.1110.4161,
title = {Declarative Event-Based Workflow as Distributed Dynamic Condition Response Graphs},
author = {Thomas T. Hildebrandt and Raghava Rao Mukkamala},
journal= {arXiv preprint arXiv:1110.4161},
year = {2011}
}
Comments
In Proceedings PLACES 2010, arXiv:1110.3853