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A Blackboard Architecture for Workflows

Most of today’s business applications have to deal with automated workflows. In this paper, we argue that the blackboard pattern can be used to create an architecture for the development of such workflows. We illustrate how the fundamental building parts of a workflow are addressed in such an architecture. The development of a prototypical group calendaring application verified the proposed architecture. It also served as a basis for contrasting the approach with commonly used workflow control constructs.