Help needed in uml diagrams - conceptual class diagram and sequence diagram -

I am showing uml diagram for bank MGMT systems. I used Case Diagram in the VP suite. . I do not have a way to move forward with conceptual classes and sequence diagrams. The help needed to get started on the basis of the above usage

No guidance about UML progress In other words, UML is pure signaling from a diagram to the next, there is little semantics and no process. You will need a method to keep a clear path to the class model from the use of the case, I suggest you for guidance or some other full-model model-based methods (not tight, they are hardly model based).