● Accelerated analysis approaches emphasize the construction of （71） to more rapidly identify business and user requirements for a new system. As an accelerated analysis technology, （72） reads the program code and automatically generates the equivalent system model, and the code can be obtained from （73） . All system analysis approaches require some form. of （74） whichincludes those techniques to be used to identify or extract system problems and solution requirements from user community. （75） is a classical set of techniques used to collect information about system problems, opportunities, solution requirements, and priorities.