Virtual communities that make use of network information systems (NIS) have a need for specification support that agrees with their communal character. System specification changes must be acceptable to all members for a community to thrive. We concentrate on the specification of workflowenabling communication tools rather than information tools that support a single user. In a previous paper, ...

The paper introduces the challenges in modern workflow management in distributed environments spanning multiple cluster, grid and cloud systems. Recent developments in cloud computing infrastructures are presented and are referring how clouds can be incorporated into distributed workflow management, aside from local and grid systems considered so far. Several challenges concerning workflow defi...

We believe that analysis tools for BPM should provide other analytical capabilities besides verification. Namely, they should provide mechanisms to analyze the complexity of workflows. High complexity in workflows may result in poor understandability, errors, defects, and exceptions leading processes to need more time to develop, test, and maintain. Therefore, excessive complexity should be avo...

This paper contains research related to workflow and design patterns. It briefly discusses the suitability of industry tools for crowdsourcing processes in terms of workflow pattern support. After listing a number of practices identified by analysing crowdsourced translation workflow models, the paper discusses four of the practices and presents two recommendations based on the scenarios of rea...

Workflow analysis is indispensable to capture modeling errors in workflow designs. While several workflow analysis approaches have been defined previously, these approaches do not give precise feedback, thus making it hard for a designer to pinpoint the exact cause of modeling errors. In this paper we introduce a novel approach for analyzing and diagnosing workflows based on integer programming...

In ebXML the choreography of a business process should be modeled by UMM (UN/CEFACT Modeling Methodology) and is finally expressed in BPSS (Business Process Specification Schema). Our analysis of UMM and BPSS by workflow patterns shows that their expression power is not always equivalent. We use the workflow patterns to specify the transformation from UMM to BPSS where possible. Furthermore, th...

Collaborative information systems are becoming more and more complex, involving numerous interacting business objects within considerable processes. Analysing the interaction structure of those complex systems will enable them to be well understood and controlled. The work described in this paper is a contribution to these problems for workflow based process applications. In fact, we discover w...

Recently, a variety of workflow patterns was suggested for capturing different aspects in process-aware information systems (PAISs) including control and data flow, resources, process change, and exception handling. All these patterns are highly relevant for implementing PAISs and for designing process modeling languages. However, current patterns provide only a partial answer to the question w...

We propose a small set of parameterized abstract models for workflow patterns, starting from first principles for sequential and distributed control. Appropriate instantiations yield the 43 workflow patterns that have been listed recently by the Business Process Modeling Center. The resulting structural classification of those patterns into eight basic categories, four for sequential and four f...

Workflow enacting systems are a popular technology in business and e-science alike to flexibly define and enact complex data processing tasks. Since the construction of a workflow for a specific task can become quite complex, efforts are currently underway to increase the re-use of workflows through the implementation of specialized workflow repositories. While existing methods to exploit the k...