John Zachman

“When the rate of change increases to the point that real time required to assimilate change exceeds the time in with change must be manifest, the enterprise is going to find itself in deep yogurt.”

“A significant observation regarding... architectural representations is that each is of a different nature than the others. They are not merely a set of representations, each of which is an increasing level of detail than the previous one. Level of detail is an independent variable, varying within each architectural representation.”