（）analysis emphasizes the drawing of pictorial system models to document andvalidate both existing and/or proposed systems. Ultimately, the system models become the（）for designing and constructing an improved system. （）is such a technique. Theemphasis in this technique is process-centered. Systems analysts draw a series of processmodels called （）. （）is another such technique that integrates data and processconcerns into constructs called objects.

（）is another such technique that integrates data

A．Structured analysis

B．Information Engineering

C．Discovery Prototyping

D．Object-Oriented analysis

（），到队值班室把本班炸药消耗情况和存在的问题向值班队干汇报，填写好有关记录。

A.下班后

B.入井后

C.上班后

D.上井后