>The step that takes the zone contents and signs it >just before publication, of course. Is that "one step?" Even if it is so considered, who controls the keys? how are they managed? If you define "root zone management process" narrowly as simply "what happens once you have a signed zone" then of course you can view it as little changing. If you define it more broadly (and accurately imho) as the preparation of the zone file for publication, then lots will change.