Abstract: Disclosed is a schematic capture and design verification system wherein the graphic symbol linked to a component is separated from the model used to simulate the component. Each component has a graphics symbol linked to a link or scion page. The link page also contains a list of all models that can be used with the component. The system allows a model to be selected for each component in a schematic, and allows the model to be changed at any time. The system also allows the models for all components to be changed with a single command. The user enters a schematic into the system, then selects a model for each component used in the schematic. After a model has been selected for each component, the user requests the system to build a netlist that describes the schematic to a simulator or other analysis or synthesis tool. In building the netlist, parameters are extracted from the link page for each component and included in the netlist to be used by the simulator.