The systematic approach of complex technical devices design allows not only to design new devices and objects, but also to automate the design process. This article discusses the seven-layer spiral design model, which can be used to simplify the design process of complex devices in areas of mechanical engineering and computer engineering. The spiral model in this work is used for automation of analog IP-cores design; in particular, the windows application that implements the automated design system of analog low-pass filters was developed. The application allows user to design the filter scheme in automated mode after inputting the parameters. The proposed method has certain benefits compared to the known automated design methods for the specific object classes.