Innovative e-business projects start with a design of the e-business model. We often
encounter the view, in research as well as industry practice, that an e-business model is …

Image variability due to changes in pose and illumination can seriously impair object
recognition. This paper presents appearance-based methods which, unlike previous …

Workflow management is emerging as a challenging area for databases, stressing database
technology beyond its current capabilities. Workflow management systems need to be more …

In this volume Gerold Riempp examines the interaction of different workflow management
systems (WFMS) in geographically-distributed and legally-separate organisations. This is an …

Current workflow management technology does not provide adequate means for inter-
workflow coordination as concurrently executing workflows are considered completely …

This paper introduces definition and enactment models to characterize workflows. The
proposed knowledge model provides concepts for modeling activities, data used by such …

This paper presents an approach towards the specification, verification, and distributed
execution of workflows based on state and activity charts. The formal foundation of state and …

It has been over ten years since the rst work ow product was introduced. Despite the large
number of work ow vendors and research e orts all over the world, despite all the rosy …

We describe the concept and implementation of an inter-process communication facility
based on the exchange of events between concurrently running processes. In contrast to …

Workflow management is widely accepted as a core technology to support long-term
business processes in heterogeneous and distributed environments. However, conventional …