（1）analysis emphasizes the drawing of pictorial system models to document andvalidate both existing and/or proposed systems. Ultimately， the system models become the（2）for designing and constructing an improved system. （3）is such a technique. Theemphasis in this technique is process-centered. Systems analysts draw a series of processmodels called （4）. （5）is another such technique that integrates data and processconcerns into constructs called objects.
（1）
A.Prototyping 
B.Accelerated 
C.Model-driven 
D.Iterative 
（2）
A.image 
B.picture 
C.layout 
D.blueprint 
（3）
A.Structured analysis 
B.Information Engineering 
C.Discovery Prototyping 
D.Object-Oriented analysis 
（4）
A.PERT 
B.DFD 
C.ERD 
D.UML 
（5）
A.Structured analysis 
B.Information Engineering 
C.Discovery Prototyping 
D.Object-Oriented analysis