http://popups.lib.uliege.be/1373-5411/index.php?id=1222 Index terms fr 0 http://popups.lib.uliege.be/1373-5411/index.php?id=4459 In this paper we present an innovative concept and prototype of a web platform which supports participatory modelling in the decision-making processes in the field of environmental modelling and simulation. Participatory modelling needs usually face-to-face participatory modelling sessions. In comparison to classical approaches, the platform presented in this paper shall facilitate web-based collaborative and cumulative modelling when such face-to-face sessions cannot be organised as often as desired. Successive iteration steps of the model development can thus be displayed interactively in a standard web browser together with comments and explanations made by the modeller. The platform strengthens the support of formal model construction and documentation on the one hand and reduces the effort of model re-publishing on the other hand. These approaches are discussed and characterised in the following contribution. Furthermore this platform shall be used to support participatory modelling and decision-making processes in the field of sustainable development, especially in the context of anticipatory systems Fri, 11 Oct 2024 11:14:16 +0200 Fri, 11 Oct 2024 11:14:28 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=4459 http://popups.lib.uliege.be/1373-5411/index.php?id=2069 Based on the Rosen's definition (Rosen 1985), anticipation "is based on having a predictive model of the system you're trying to control ...". In case of complex systems, for which analytical models either do not exist or are based on too strong assumptions, anticipation is based either on simulation models or mental models. The paper deals with one particular simulation study whose main objective is to form a part of a decision support system for water management. In particular water demand related processes and their links to economy of a small Mediterranean country are studied and simulated. Simulation models axe expressed by system dynamics and implemented by the visual simulation tool PowersimTM. Mon, 29 Jul 2024 10:59:03 +0200 Mon, 29 Jul 2024 10:59:18 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=2069 http://popups.lib.uliege.be/1373-5411/index.php?id=1220 When the current performances of a social system are reckoned as unsatisfactory and not complying with its expected evolution or if their trends appear to result in an unsustainable future, the problem consists in defining a change for reaching a better behaviour. Significant changes in the evolution are possibly obtained by discontinuities, which may be concerned with drastic changes in the policy and/or in the system structure. This paper introduces the paradigm of managing the changes by discontinuities, which we can identify and treat by computer simulation according to a heuristic approach, which involves forecasting, backcasting and optimization tools. Finally, such an approach is discussed from an anticipatory point of view. Mon, 08 Jul 2024 15:50:46 +0200 Mon, 08 Jul 2024 15:50:54 +0200 http://popups.lib.uliege.be/1373-5411/index.php?id=1220