AnarchitecturalStyledefinesasafamilyofsuchsystemsintermsofa()ofstructuralorganization.Morespecificallyanarchitecturalstyledefinesavocabularyof()andconnectortypes,andasetof(请作答此空)onhowtheycanbecombined.Formanystylestheremayalsoexistoneormore()thatspecifyhowtodetermineasystem'soverallpropertiesfromthepropertiesofitsparts.Manyofarchitecturalstyleshavebeendevelopedovertheyears.Thebest-knownexamplesof()architecturesareprogramswrittenintheUnixshell．
A.functions B.code segments C.interfaces D.constraints正确答案D
