For Lesson 2, you create a UML project and an analysis model of use cases from those requirements and establish traceability back to the requirements.
对于课程2，您创建一个UML项目和一个来自那些请求的案例的分析模型，并建立追溯到请求的追溯性。
2
Lesson 1. Develop transformations only when the semantic connections between the model elements are well understood.
经验1 .仅在充分理解了模型单元之间的语义连接后才进行转换的开发。
3
But the sad lesson of this traditional model is clear: Excessive resources often arrive late in the development cycle, impacting productivity and competitiveness.