Regarding UseCase-Class Diagram-Componet-Sequence Diagram

[dbala subramaniam]

Hi All
I am preparing Part II assignment, how I need to tie my class diagram , component diagram, sequence diagram as per usecase diagram.
1)IS it each usecase -one sequence diagram/collaboration diagram ,next is it required to submit sequence aswell as collaboration diagrams
only sequence or collaboration diagrams need to submit.
2)How do I tie usecase with class diagram.
3)How to I tie usecase with component diagram.
please help me
with regards
bala