题目内容：
（ ）analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems. Ultimately, the system models become the（ ）for designing and constructing an improved system.（ ）is such a technique. The emphasis in this technique is process-centered. Systems analysts draw a series of process models called（ ） 、 （请作答此空） is another such technique that integrates data and process concerns into constructs called objects.
A.Structured analysis
B.Information Engineering
C.Discovery Prototyping
D.Object-Oriented analysis
A.见图A
B.见图B
C.见图C
D.见图D
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答案解析：