单项选择题 其中以制定出信息系统的长期发展方案、决定信息系统在整个生命周期内的发展方向、规模和发展进程为主要目标的阶段是（）。

单项选择题 （） assesses the priority of identified risks using their probability of occurring, the corresponding impact on project objectives if the risks do occur, as well as other factors such as the time frame and risk tolerance of the project constraints of cost, schedule,scope, and quality.

单项选择题 （） describes, in detail, the project’s deliverables and the work required to create those deliverables.