NI Multisim 与 NI Ultiboard为设计、仿真和布局完整的印制电路板（PCB）提供了一个集成的平台。高度灵活的数据库管理程序，使得为自定义原理图符号添加新的SPICE仿真模型变得十分方便，该原理图符号可用于将精确的封装转换为布局。-NI Multisim and NI Ultiboard for design, simulation and layout of a complete printed circuit board (PCB) provides an integrated platform. Highly flexible database management procedures, custom made to add a new schematic symbol of the SPICE simulation model has become very convenient, the schematic symbols can be used to accurately convert the layout of the package.