system@@1	system	organization	19
system@@1	system	scheme	19
system@@1	system	method	17
system@@1	system	arrangement	14
system@@1	system	process	12
system@@1	system	structure	12
system@@1	system	plan	7
system@@1	system	operative system	6
system@@1	system	approach	5
system@@1	system	technique	5