Suggestion for minor enhancement to article 

I would like to see a brief discussion of the concept of 'normalization' of data so that, for instance, productivity comparisons to a benchmark standard compare apples to apples. If an organization captures hours worked, but the standard is days billed, the organization's data has to be normalized, or converted from hours worked to days billed in order for the comparison to be meaningful.   W.Chandler 71.8.193.249