AbstractThe International Space Station (ISS) has much in common with past major programs. However, it does exhibit one fundamental difference, the ultimate configuration is assembled on‐orbit in a series of stages. Each stage must be a viable spacecraft, capable of meeting stage mission requirements and capable of survival until the next assembly stage. The Design Analysis Cycle (DAC) is a process to integrate the ongoing program design/analyses tasks to ensure through analysis, that each stage of the current design of the ISS vehicle can perform the intended mission objectives. The intent of the DACs, is to integrate stage oriented, “horizontal” assessments in support of each program Incremental Design Review