Yii Blog Analysis

Dear all,

For a school project i’d like to use the Yii framework as a basis for a sports team website. I’m planning to use the Yii Blog demo as a sample to build upon. However, I have to work out of complete analysis of this project and I’m having difficulties with this. As I can’t find any UML diagrams on the Blog demo, I’d like to work out a UC & Class diagram based on the Blog demo to get myself started. I’m not familiar with creating UML diagrams in an MVC way and specially not with the Yii framework so I was wondering if there any good guides to check out to get familiar with the MVC structure for analyzing the Blog and the further progress of my eventual project.

Thanks in advance for any advice !