【问题2】（4分）项目在实施过程中，项目团队“发现了新的、更简单易行的技术方案”说明了目前的什么工作没有做好，为什么？

In project management, a （ ）is a list of a project’s milestones, activities, and deliverables, usually with intended start and finish date. Those items are often estimated in terms of resource allocation, budget and duration, linked by dependencies and scheduled events.
 

（ ）can be considered as part of risk mitigation.