to refer to a bundle of techniques used to construct system dynamics models working directly with client groups on key strategic decisions. We use facilitated face-to-face meetings to elicit model structure and to engage client teams directly in the process of model conceptualization, formulation, analysis, and decision making."Group Model Building" (GMB) as we use the term has a cosy, narrow, some might say parochial ring to it. In this brief title, we fail to mention that the models our groups build are always system dynamics models. Furthermore as we discuss below, GMB has much in common with six other named techniques for gaining client involvement in strategic problem finding and problem resolving activities, all using system dynamics models, none of which use the term Group Model Building. We also see our work as sharing many common concerns with the viewpoints expressed in JORS' previous symposium on Problem Structuring Methods. Eden and Ackermann (2006) list four similarities between PSMs: (1) use of a model as a transitional object, (2) increasing the overall productivity of group process, (3) attention to facilitation and effective group process, and (4) appreciation of the significance of facilitation skills. If we were to use Eden and Ackermann's (2006) four points of similarity as a loose definition of PSMs we would have to conclude that GMB is another PSM.We are probably an example of Westcombe, Franco, and Shaw's (2006) fifth challenge "to design a new PSM that explicitly integrates with a certain approach to hard modelling" while trying to avoid working "simply as a bolt-on to hard modelling".