... design process and how it relates to the method. Reading thischapter will help you:• Understand the UDM and UDM-PD methods.In this chapter • UDM and UDM-PD• Specification and specification ... Understand the need for proper simulation, review, and testing techniquesduring and after the process.4.1 What is UDM and UDM-PD?After years of designing circuit boards, ASICs,FPGAs, and CPLDs ... single chip. The entire doc-umentation for the chip consisted of handfuls of schematics and lab books with handwritten notes.Without the necessary direction or planning that these large designs...