Help:How can i start MonetDB development quickly

sir/mam, I am a newbie to MonetDB development . I have read some paper and user guide about MonetDB. And i download the sourse code and want to modify the code, especially the storage part, to test my idea. However, the project is too large to understand quickly. anyone can give me suggestion ? Whether are there documents or structure charts about the project that make newbie to understand quickly. thanks. Andy