Information system change is concerned with deliberate\nmodifications to an organization�s technical and organizational\nsubsystems that deal with information. Changes\nresult in adjustments being made to the configuration of\ninformation systems that could have an impact on the\noperations of those systems. This paper examines the\nproblem of interference between old configuration activities,\nnew configuration activities and reconfiguration\nactivities that occur due to overlapping modes. The paper\nproposes a novel form of depicting and solving the problem\nbased on a flow-based conceptualization in which a\nconfiguration can be viewed as a system of flow systems\norganized architecturally, described by their internal flows,\nand connected by external flows and triggering. This\nmethod of diagramming is applied to a complex case study\ninvolving the reconfiguration of an office workflow for\norder processing described in BPMN. The diagrams\nresulting from this method and the BPMN diagrams are\nthen examined side by side. Accordingly, the conclusion is\nthat a new high-level representation seems more systematic\nas a foundation for building a conceptual schema of\nbusiness processes.
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