Measuring Content Metrics: All About the Data

In Adage:  On how to measure digital content.  Which relates to the more general aspect of Data Assets.  Which I have repeated here and given a talk about.   It's all about context in business process. It requires having some measure of the data, in a given context.  How do we effectively do this in a way that can stay up to date?  I want to know how the value of my data is changing, where that is headed, and even what data I don't have could be added to it to make it more valuable.