According to the SAFe framework, a system demo is an integral event that occurs at the end of every Iteration1. It provides stakeholders with an integrated view of new features delivered by all the teams on the Agile Release Train (ART) for the most recent iteration. The system demo serves as an objective measure of progress and offers an opportunity for feedback. It's essential for assessing the Solution's current state and for the ART to receive immediate feedback from Business Owners, sponsors, stakeholders, and customers. While the end of each Program Increment (PI) also includes a system demo, this larger event is part of the Inspect and Adapt (I&A) event and has a broader scope and audience. Therefore, the correct frequency for a system demo is after every iteration, ensuring continuous integration and feedback throughout the development process.