This five-step guide details the recommended process for building software-defined test systems from start to finish. It presents these test engineering best practices in a practical and reusable manner and features specific examples used by industry-leading test engineering teams. It also references a scalable, software-defined production test system developed by the NI test engineering team for testing I/O modules for the NI CompactRIO platform, which is shown in Figure 3. CompactRIO is an advanced embedded control and data acquisition system designed for applications that require high performance and reliability. .