Manyoftheactivitiesperformedduringthepreliminaryinvestigationarestillbeingconductedin(),butinmuchgreaterdepththanbefore.Duringthisphase,theanalystmustbecomefullyawareofthe()andmustdevelopenoughknowledgeaboutthe(3)andtheexistingsystemstoenableaneffectivesolutiontobeproposedandimplemented.Besidesthe()forprocessanddataofcurrentsystem,thedeliverablefromthisphasealsoincludesthe()fortheproposedsystem. (3)应选()。 A.har
A.ware environment
B.testing environment
C.software environment
D.business environment
正确答案是D