ExtremeProgramming(XP)isadisciplineofsoftwaredevelopmentwith(请作答此空)ofsimplicity,communication,feedbackandcourage.Successfulsoftwaredevelopmentisateameffort-notjustthedevelopmentteam,butthelargerteamconsistingofcustomer,managementanddevelopers.XPisasimpleprocessthatbringsthesepeopletogetherandhelpsthemtosucceedtogether.XPisaimedprimarilyatobject-orientedprojectsusingteamsofadozenorfewerprogrammersinonelocation.TheprinciplesofXPapplytoany()projectthatneedstodeliverqualitysoftwarerapidlyandflexibly.2011-AnXPprojectneedsa()customertoprovideguidance.Customers,programmers,managers,areallworking()tobuildthesystemthat'sneeded．Customers-thosewhohavesoftwarethatneedstobedeveloped-willlearnsimple,effectivewaysto()whattheyneed,tobesurethattheyaregettingwhattheyneed,andtosteertheprojecttosuccess.
A.importance] B.keys C.roles D.values正确答案D
