Run Ignis before your program. Run it again after. What you get is a clear, scored skills profile at both points, showing exactly where capability moved, where it didn't, and what that means for the work ahead.
This is the measurement that was missing. Not a proxy for development. Not a satisfaction score or a manager impression. A specific, comparable picture of what changed.
When you can see which skills moved and which didn't, program design improves. Development investment goes to the right people because you know where the actual gaps are. Succession conversations get more specific. And when someone asks whether the program was worth it, you have an answer that holds up.