An embodiment of an integrated circuit design framework comprises a user interface which automatically initializes a three-dimensional simulation tool for simulating or analyzing the characteristics of a complex metallization system. In some illustrative embodiments the user interface may additionally provide electrically simulated parameter values for an input parameter, such as the channel resistance of a power transistor, thereby enabling a simulation of a portion of interest of the metallization system without actually requiring the provision of the design data of the power transistor.