Theobjectiveof()istodeterminewhatpartsoftheapplicationsoftwarewillbeassignedtowhathardware.Themajorsoftwarecomponentsofthesystembeingdevelopedhavetobeidentifiedandthenallocatedtothevarioushardwarecomponentsonwhichthesystemwilloperate.Allsoftwaresystemscanbedividedintofourbasicfunctions.Thefirstis(请作答此空).Mostinformationsystemsrequiredatatobestoredandretrieved,whetherasmallfile,suchasamemoproducedbyawordprocessor,oralargedatabase,suchasonethatstoresanorganization'saccountingrecords.Thesecondfunctionisthe(),theprocessingrequiredtoaccessdata,whichoftenmeansdatabasequeriesinStructuredQueryLanguage.Thethirdfunctionisthe(),whichisthelogicdocumentedintheDFDs,usecases,andfunctionalrequirements.Thefourthfunctionisthepresentationlogic,thedisplayofinformationtotheuserandtheacceptanceoftheuser'scommands.Thethreeprimaryhardwarecomponentsofasystemare().
A.data access components B.database management system C.data storage D.data entities正确答案C
