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[单选题] ( )analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems.Ultimately,the system models become the(请作答此空)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( )、( )is another such technique that integrates data and process concerns into constructs called objects.

A.image

B.picture

C.layout

D.blueprint

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