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1、RapidapplicationdevelopmentinsmallunitsettingslnlernaHninlJournalOrIMedicalELSEVIERInternationalJournalofBio-MedicalComputing40(1995)157-163ComputingRapidapplicationdevelopmentinsmallunitsettingsJasonC.H.YapMinistryofHenlih,Collegrof’MedicineBuilding,CollegeRoad,Singapore0316,
2、SingaporeAbstractSmallunitswithspecialisedfunctionsoftenhavedifficultyindevelopinginformationsystemsbecauseoftheiruniqueanddynamicrequirements,thesmallnessoftheirapplicationsrelativetothelargeinter-organisationalnetworks,andthesheernumbersofsuchunits,especiallyingovernment.Per
3、sonalexperiencewiththedifficultyofestablishingasuitableinformationsystemhasledtothedevelopmentofamethodologyforenduserstodeveloptheirownapplicationswithonlytheguidanceofinformationtechnologyprofessionals(ITPs)-hereentitled‘SmallUnitEnduserRapidApplicationDevelopment’orSERAD.Ad
4、atabasemanagementsystem(DBMS)isusedtomanagedataabout‘focalobjects’withstatusflagsandqueries/viewsatinterfacepointsthroughUDA(UserAction,DataEntry,ApplicationAction)cycles.Thesystemwhichpermitsdataentryalmostimmediately,notonlyeventualiycreatesafullapplication,butalsotrainsendu
5、sersintheprocess.ThemerhodologyleadsITPsandendusersthroughasequenceofexercisesinsystemsanalysis,tailoredtominimisethetimeandeffortinputofITPsdespitetherelativelackofITtrainingandconceptsinendusers,withaviewtorapidlycreatingdynamic,robustandsoundinformationsystems.Keywords:Smal
6、lunitsettings;Informationsystems;Rapidapplicationdevelopment1.IntroductionOurchaoticworldincreasesinspeedandcom-plexityeveryday.Astechnology,inparticularinformationtechnology(IT)transformstheworld[l],noorganisationcanignorethepotentialofIT.Leadingedgeorganisationsshowhowtheinn
7、ova-tiveuseofITleadtoefficientoperations,com-mercialeffectivenessandstrategiccompetitiveadvantage[2].Howeversmallunits(SUs)withincertainorganisations(especiallygovernment)areindangerofbeingleftbehind,ifendusers,withalbeitlimitedtrainingandresources,arenothelpedtoimplementsound
8、1%.TheMinistryofHealth(MOH)inSingaporehasimplementedsomeexcel