Enterprises do not run on a "Wing and a Prayer." Rather then run on highly engineered architectures that touch every aspect of the enterprise such that every Who, What, When, Where, Why and How.
To have and to do that requires both an Enterprise Architecture, and an Enterprise Management System. That system, while it contains real data from across the enterprise, this data is not the traditinal HR, Finance, and Manufacturing data.
Rather, this data resides "above and the "about data" from across the entire enterpise.
In that sense, that data is at the above or Meta Layer of the enterprise and consequently this Enterprise Management System is really a Metabase System.