Liaison: a workflow model for novel applications

The workflow paradigm is advancing the scope of process modelling by supporting rich process structures as well as resource allocation through the use of an organisation model. Its initial success has attracted a lot of interest in applying it to applications that are more complex than what can be handled by the current generation of workflow management systems. This paper introduces a new workflow model called Liaison that is designed to address the needs of these novel applications. More specifically, it provides a rich organisation model, sophisticated activity assignment constraints, an information model that also records presentation details, and a dynamic process model. An implemented prototype is described together with an examination of desirable improvements.