Accelerated analysis approaches emphasize the construction of（ ）to more rapidly identify business and user requirements for a new system. As an accelerated analysis technology，（ ）reads the program code and automatically generates the equivalent system model， and the code can be obtained from （ ）. All system analysis approaches require some form of（请作答此空）which includes those techniques to be used to identify or extract system problems and solution requirements from user community. （ ）is a classical set of techniques used to collect information about system problems， opportunities， solution requirements， and priorities.
A. requirement discovery
B. business process redesign
C. cause-and-effect analysis
D. total quality management
