[单选] 迪娜是硬件项目的项目经理，她正对采购流程进行结构化审查。她想检查从规划采购管理流程到控制采购流程的每一份文件，以确定失败之处。迪娜应该使用什么工具？<br/>Dina， the project manager of a hardware project， is performing a structured review of the procurement process． She would like to examine each document from the Plan Procurement Management process through the Control Procurements process to identify failures． What tool should Dina use？