Theprojectworkbookisnotsomuchaseparatedocumentasitisastructureimposedonthedocumentsthattheprojectwillbeproducinganyway.Allthedocumentsoftheprojectneedtobepartofthis().Thisincludesobjectives,externalspecifications,interfacespecifications,technicalstandards,internalspecificationsandadministrativememoranda(备忘录).Technicalproseisalmostimmortal.Ifoneexaminesthegenealogy(Ff)ofacustomermanualforapieceofhardwareorsoftware,onecantracenotonlytheideas,butalsomanyoftheverysentencesandparagraphsbacktothefirst()proposingtheproductorexplainingthefirstdesign.Forthetechnicalwriter,thepaste-potisasmightyasthepen.Sincethisisso,andsincetomorrow'sproduct-qualitymanualswillgrowfromtoday’smemos,itisveryimportanttogetthestructureofthedocumentationright.Theearlydesignoftheproject()ensuresthatthedocumentationstructureitselfiscrafted,nothaphazard.Moreover,theestablishmentofastructuremoldslaterwritingintosegmentsthatfitintothatstructure.Thesecondreasonfortheprojectworkbookiscontrolofthedistributionof().Theproblemisnottorestrictinformation,buttoensurethatrelevantinformationgetstoallthepeoplewhoneedit.Thefirststepistonumberallmemoranda,sothatorderedlistsoftitlesareavailableandhworkercanseeifhehaswhathewants.Theorganizationoftheworkbookgoeswellbeyondthistoestablishatree-structureofmemoranda.The(请作答此空)allowsdistributionliststobemaintainedbysubtree,ifthatisdesirable.
A.list
B.document
C.tree-structure
D.number
正确答案是C