The Workflow Patterns Initiative was established with the aim of delineating the fundamental requirements that arise during business process modelling on a recurring basis and describe them in an imperative way. The first deliverable of this research project was a set of twenty patterns describing

applications. Therefore, transaction relevant requirements of such applications are investigated and the basic concepts of a new kind of transactions - workflow transactions - are presented. The motivation is to integrate advanced transaction concepts into workflow models in order to define and support a

Workflow systems have long been of interest to computer science researchers due to their practical relevance. Supporting delegation mechanisms in workflow systems is receiving increasing research interest. In this paper, we conduct a comprehensive study of user delegation operations in computerized

/FMQM, for workflow systems in which the need for such a centralized database is eliminated. Instead, we use persistent messages as the means to store the information relevant to the execution of a business process. Our approach is to completely distribute the execution of a process so individual nodes

In this demonstration, we present the ZOOM*UserView system, and focus on the module which generates a “user view” based on what tasks the user perceives to be relevant in the workflow specification. We will show how user views can be used to reduce the amount of information returned by provenance

A technique called user views has recently been proposed to focus user attention on relevant information in response to provenance queries over workflow executions [1, 2]: Given user input on what modules in the workflow specification are relevant to the user, a user view is a concise

model of the contracting process: the contracting workflow. However, the design of a contracting workflow from scratch is a complex task. We propose a solution in which contracting workflows are composed from standard building blocks and show that protocol patterns for business transaction protocols

to express their experiment designs. Discovery then becomes an increasingly hard problem, as it becomes more difficult for a scientist to identify the workflows relevant to their particular research goals amongst all those on offer. While many approaches exist for the publishing and discovery of services

suitable partners, connect WFMSs of different kinds, control outsourced workflow, and share an abstraction of the workflow specification between the partners. The contract defines the data, process, and conditions relevant to the co-operation and the outsourced workflow on an abstract level

Workflows are prevalent in diverse applications, which can be scientific experiments, business processes, web services, or recipes. With the dramatically growing number of workflows, there is an increasing need for people to search a workflow repository using keywords and to retrieve the relevant