33 research outputs found

    Using system dynamics for collaborative design: a case study

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    <p>Abstract</p> <p>Background</p> <p>In order to facilitate the collaborative design, system dynamics (SD) with a group modelling approach was used in the early stages of planning a new stroke unit. During six workshops a SD model was created in a multiprofessional group.</p> <p>Aim</p> <p>To explore to which extent and how the use of system dynamics contributed to the collaborative design process.</p> <p>Method</p> <p>A case study was conducted using several data sources.</p> <p>Results</p> <p>SD supported a collaborative design, by facilitating an explicit description of stroke care process, a dialogue and a joint understanding. The construction of the model obliged the group to conceptualise the stroke care and experimentation with the model gave the opportunity to reflect on care.</p> <p>Conclusion</p> <p>SD facilitated the collaborative design process and should be integrated in the early stages of the design process as a quality improvement tool.</p

    Managing a reservoir-based hydro-energy plant: building understanding in the buy and sell decisions in a changing environment

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    This paper describes a modelling process at a Norwegian chemical producer, who owns 20% of a reservoir based hydro-energy plant. While the initial objective was to increase the profitability of the energy plant (in particular by an improved understanding of buying and selling decisions and a reconciliation of the managerial and engineering points of view in the context of a liberalised energy market) the process resulted in the company's decision to refocus on its core-business. The process illustrates how a modelling process can lead to a fundamental reframing of the issue, resulting in major change for the company

    The Application Of A Hydro Electric Production Simulation Model

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    This paper presents different applications for a system dynamics simulation model representing the technical aspects of hydro electric production. The base model, developed for a Norwegian utility company, original was designed to improve understanding of a complex, technical system in a group of non technical decision makers. Experience showed that the applicability of the model was more substantial than expected. Based on the original core model a number of applications where developed meeting as different demands as decision aid for daily production planning, learning aid for new operators, evaluation of capacity expansion plans, inspection of system parameters and measurements quality and to assess the value of future production potential. The paper describes the core model and how this core were expanded and used in a number of different applications. The development as well as the use of the applications are discussed. The model structure can be easily adapted to represent other hydro electric production sites and to support other applications. We are presently in the process of adapting the model for a Colombian utility company to assist them in determining the company’s value
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