DAMOCIA-SIM, A GENERIC TOOL FOR RADIATION SIMULATION INTO MILD WINTER REGION GREENHOUSES. In order to simulate specific greenhouse structures in a general way, DAMOCIA-SIM uses ”greenhouse definitions” and ”experiment definitions”. It incorporates modern IT techniques and tools, with discrete-elements techniques. The simulation process is divided into independent phases, with alternative processes. The different transformations are executed by ”connective independent” modules. Processes are managed by a special Handler. The tool features an overall multiagent architecture. Mathematical models include external-internal radiation, plastic response, shading and canopy effect. The tool generates radiation maps in the specified greenhouses, used to evaluate several passive structures.