You can’t manage what you don’t measure is an old management adage that is still accurate today. Unless you measure something you don’t know if it is getting better or worse. You can’t manage for improvement if you don’t measure to see what is getting better and what isn’t. Most organizations today have a real poor understanding of their “stock” of information assets, how much it costs, what is its value and how it will evolve in the next years. Building a model taken into account the variety of data repositories available, be them on-prem or in the cloud, the different content types, the existing file aging, the legal mandates and the current retention durations is the only way to get a better understanding of your information universe to take better informed decisions.