The 4th edition is an upgrade for courses using earlier editions with updated content addressing model-based systems engineering (MBSE), digital engineering, digital threads, digital twins, artificial/augmented intelligence (AI)/machine learning (ML), SysML 2.0, and GENESYS software as the successor to the CORE software for engineering of systems with GENESYS fully compliant with SysML and having connectors to analytical engineering software tools including Excel, MATLAB, and Simulink.