00386nam a2200133Ia 4500008004100000020001800041082001800059100002500077245004000102260003200142300000800174546000900182650006100191230312s9999||||xx |||||||||||||| ||und||  a0-07-231539-3  a004.21bWHI-S  aWhitten Jeffrey , L. 0aSystems Analysis and Design Methods  bMcGraw HillaNew Yorkc2000  a724  aEng.  aComputervSystems Design  , Input Design and Prototyping