The three models here are intimately related I believe. For a generalisation of all them, see https://en.wikipedia.org/wiki/Neil_J._Gunther#Universal_Law_of_Co

The three models here are intimately related I believe. For a generalisation of all them, see https://en.wikipedia.org/wiki/Neil_J._Gunther#Universal_Law_of_Computational_Scalability https://en.wikipedia.org/wiki/Neil_J._Gunther#Universal_Law_... Neil's books, software and "gaphorisms" are all good reading. http://www.perfdynamics.com/Manifesto/gcaprules.html http://www.perfdynamics.com/Manifesto/gcaprules.html