It also supports a design methodology that integrates the vendor tools of the FPGA manufacturers into the place and route of programmable blocks. If programmed components are used in the circuit, pin assignments and signals from FPGAs from different manufacturers can be read. In OrCAD Capture assembly variants can be created with several logic functions for a PCB by different bill of materials for each variant. Variants are defined in the schema editor and later output as variants with different parts lists for each variant. In the case of hierarchically structured designs, the same electrical networks are interconnected via cross-porting ports or defined as global networks. The electrical connections (networks) between the associated component pins can be quickly established. Using the PartBrowser, circuit diagram symbols are selected with the aid of filters from the library and placed in the circuit diagram. Via the navigation window the different pages of the circuit diagram can be selected and thematically managed. OrCAD Capture uses flat or hierarchical circuit diagrams. It is outstanding how simple and intuitive the design intentions are captured. OrCAD Capture schematic entry tool for circuit diagrams is one of the world's most widely used software for entering and documenting electrical circuits.