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D