Arequirementissimplyastatementofwhatthesystemmustdoorwhatcharacteristicsitneedstohave.Requirementsevolvefrombroadstatementsofoverall(71)fromthesystemtodetailedstatementsofthebusinesscapabilitiesthatasystemshouldsupporttodetailedtechnicalstatementsofthewayinwhichthecapabilitieswillbeimplementedinthenewsystem.()focusondescribinghowtocreatethesoftwareproductthatwillbeproducedfromtheprojectNonfunctionalrequirementsareprimarilyusedinthedesignphasewhendecisionsaremadeabouttheuserinterface,thehardwareandsoftware,andthesystem'sunderlyingarchitecture.Thesystem'sphysicalandtechnicalenvironmentswouldbeconsidered().Thespeed,capacity,andreliabilityofthesystembelongto().()describesthatwhohasauthorizedaccesstothesystemunderwhatcircumstances. (71)应选？
A.business needs
B.operation processes
C.technical specification
D.function components
正确答案是A