We present the definition of diverse models of physical systems using the Cell-DEVS paradigm. Cell-DEVS is an extension of the DEVS formalism that allows the definition of cellular models. We have developed a tool implementing these theoretical concepts, making easy the definition of cell spaces with explicit timing delays. Diversity of problems can be attacked in a simple fashion, reducing the development times of complex models. A wide variety of models have been developed using this

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... and here we include examples of a fire spreading model with different conditions, formation of a watershed and robots in a manufacturing plant. These examples allow us to show the potential application of the formalism and related tools to attack diflerent problems.