Abstract
With the advent of Enterprise Resource Planning (ERP) systems such as SAP and Oracle, availability of data is no longer the bottleneck to decision making in many organizations. Instead the reverse seems to apply more frequently. Integrated organization-wide computer systems overwhelm managers with data to such an extent that it becomes difficult to assess its relevance for managing operations. A number of methodologies attempt to help management to distill meaning from large amounts of data, such as the Balanced Scorecard, discrete event simulation, qualitative modeling approaches and system dynamics. These methodologies enable managers to identify multiple performance indicators and determine tradeoffs between effects of proposed improvements. Implementation of improvements however entails small or large scale organizational change. Methodologies are commonly used in an expert mode, which makes them prone to many of the potential traps of change management, such as lack of commitment. The approaches can often only be used by experienced consultants. Indeed the literature shows many cases in which ERP systems are not used to their full extent, even though expert consultants supervise implementation months or years after the initial roll-out. Alternative methodologies that enable problem owners to identify problems and combine knowledge and system data in solving these are available. Group model building, which combines system dynamics and active involvement of problem owners, may circumvent the traps to which expert methods are prone. In this chapter we explore three projects in which master students with limited experience used group model building to model and improve operations management. We address the context in which the projects were carried out and the process of client participation and model construction. We describe effects in terms of end products, quality of solutions, results as judged by the clients (such as commitment and implementation) and outcomes of system changes. Our contribution to the literature on ERP systems is a definition of the necessary conditions that need to be in place, in order for group model building to succeed in improving operations management. Our contribution to the group model building literature is a clarification of where the standard process of participative modeling needs to be adapted when used in operations management.
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Rouwette, E.A., Vennix, J.A. (2009). Improving Operations Management by Synthesizing Participant Knowledge and System Data. In: Strohhecker, J., Größler, A. (eds) Strategisches und operatives Produktionsmanagement. Gabler. https://doi.org/10.1007/978-3-8349-8401-2_13
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