(请作答此空)analysisemphasizesthedrawingofpictorialsystemmodelstodocumentandvalidatebothexistingand/orproposedsystems.Ultimately,thesystemmodelsbecomethe()fordesigningandconstructinganimprovedsystem.()issuchatechnique.Theemphasisinthistechniqueisprocess-centered.Systemsanalystsdrawaseriesofprocessmodelscalled()、()isanothersuchtechniquethatintegratesdataandprocessconcernsintoconstructscalledobjects.
A.Prototyping B.Accelerated C.Model-driven D.Iterative正确答案C
