ANewFunction Modeling MethodandIts
Hualing Fang · 2006
Management Information System (MIS)ismore 3.Thedifference between 'What todo'and'Howtodo' andmorewidely usedinmanyaspects, andfunction modeling is canbegiven inthemodels explicitly 'Whattodo'means animportant stepinthedesigning ofMIS.IDEFOfunctionwhatfunctions thesystem should accomplish, and'Howto modeling methodwasanexcellent tooltoestablish functiondo'meanshowthesystem canaccomplish thefunctions. The model, butwiththeMISbecoming moreandmorecomplex,IDEFOmethodisusedtoestablish thefunction modelto several problems emerged withthemethod innowadays. Inthis explain whattodoandhowtodowhile notinvolve details in paper, thedeficiency inpractical workofIDEFOfunctionthecarrying outprocess, whichwill begreatly helpful forthe modeling method isdiscussed andIDEFOisextended inthree designers tounderstand thekeyproblems. aspects tosolve theproblems, anda newmethodnamed 4.Theintegrality andveracity canbeassured bythe Extended IDEFOmethod ispresented. Thetoplevel ofafunctionprocesses ofcallback, check andapprove etc. modelforanEquipment Support Management Information However, withtherapiddevelopment ofcomputer System (ESMIS) isgiven bytheExtended IDEFOmethodto technique theMISisbecoming moreandmorecomplex, explain thevalidity ofthenewmethod. inconstant andface todata, manyproblems comeforth with thetraditional IDEFOmethod inpractical application. IndexTerms-Function model,Method,Management Inthis paper, theproblems areanalyzed andtheIDEFO Information System