()analysisemphasizesthedrawingofpictorialsystemmodelstodocumentandvalidatebothexistingand/orproposedsystems.Ultimately,thesystemmodelsbecomethe(请作答此空)fordesigningandconstructinganimprovedsystem.()issuchatechnique.Theemphasisinthistechniqueisprocess-centered.Systemsanalystsdrawaseriesofprocessmodelscalled()、()isanothersuchtechniquethatintegratesdataandprocessconcernsintoconstructscalledobjects.
A.image B.picture C.layout D.blueprint正确答案D
