Expect to come across this popular question in interview questions on SAFe Agile.   While we talk about the scaled agile framework and its implementation, metrics can give you the required evidence to track your way and approach to the necessary destination. They are the tools to track the progress of how well your teams are doing and what all measures can be taken to improve it further on the scale. With the help of metrics, organizations can review how the different levels in scaling are performing. As the enterprise grows from projects to portfolios, it is vital not to be limited to team agility but to strive for business agility. A program's business metrics should be rooted in its roadmap. Specifically, talking about Scaled agile, metrics are used to measure the progress of an organization in terms of different aspects, such as – Portfolio, Large Solution, Program and Team. Metrics at each level in SAFe help the enterprise to maintain the progress at each level e.g. The Epic Burn-Up Chart at the Portfolio level tracks the progress towards completion of the epic. Each level has its own set of metrics, which helps with predictability, accessing the progress report, self-assessment at individual levels etc.  But we have to make sure that the metrics are not implemented just for the purpose of doing it, but it is necessary to adopt some metrics for your agile teams that suit your needs.