Hocking, Alan with Jane Orford, "Changing Model Ownership When Needs Must: Experiences within the Business Consultancy Department of Shell International Program", 1993
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Advocates of the "Modelling as Learning" philosophy would not endorse a policy of handling over a ready-made model to a new client. In commercial environments, however, consultants and clients move on and there is pressure to maximise return on investment. This often means that existing System Dynamics models must be transferred between consultants and clients. Within the Business Consultancy department at Shell both the consultants and clients change jobs every three years or so and model handover is an issue that must be managed.