Frederick?W.?Taylor?(1856-1915)?rested?his?philosophy?on?four?basic?principles: The?development?of?a?true?science?of?management,?so?that?the?best?method?for?performing?each?Taylor?contended?that?the?success?of?these?principles?required?"a?complete?mental?revolution"?on? the?part?of?management?and?labor.?Rather?than?quarrel?over?profits,?both?sides?should?try?to?increase? production;?by?so?doing,?he?believed,?profits?would?rise?to?such?an?extent?that?labor?and?management? would?no?longer?have?to?fight?over?them.?In?short,?Taylor?believed?that?management?and?labor?had?a? common?interest?in?increasing?productivity. Taylor?based?his?management?system?on?production-line?time?studies.?Instead?of?relying?on? traditional?work?methods,?he?analyzed?and?timed?steel?workers'?movements?on?a?series?of?jobs.?Using? time?study?as?his?base,?he?broke?each?job?down?into?its?components?and?designed?the?quickest?and? best?methods?of?performing?each?component.?In?this?way?he?established?how?much?workers?should? be?able?to?do?with?the?equipment?and?materials?at?hand.?He?also?encouraged?employers?to?pay?more productive?workers?at?a?higher?rate?than?others,?using?a?"scientifically?correct"?rate?that?would?CONTRIBUTIONS?OF?SCIENTIFIC?MANAGEMENT?THEORY The?modem?assembly?line?pours?out?finished?products?faster?than?Taylor?could?ever?have?imagined.?task?could?be?determined.