Defining a functional area for java project

[lawrence281]

So, I'm struggling to narrow down the functional area's that I could produce from this use case and implement it as an RMI. I'd appreciate any help to identify a functional area of the use case and point it to me, I'm really bad at this kinda stuff.

http://pastebin.com/a4ZVwrcL

Class interfaces should be identified as these aswell
Persistent attributes
Business logic methods
Relationships between interfaces

Just to narrow it down and find the small functional are and classes would really help, as I'm very blonde.

Thanks in advance =]