What demonstrates the evolution of the maturity of a given function?

The evolution of the maturity of a given function is demonstrated by the presence ofevidenceor drivers that show improvements in how the function is performed. This includes enhancements in processes, tools, techniques, and practices that increase the sophistication and effectiveness of the function. Thesedrivers are tangible indicators that maturity is progressing beyond just the allocation of resources or time elapsed​​​.