From the use cases, designers will incure class diagrams 
and Dynamic modelings like sequence diagrm,Activity diagram 
and Collaboration diagrams.And from the use case diagram, 
we will identify control classes, boundary classes and 
Interface classes.Every Inerface classes will have 
realisation classes(implementation of the abstract classes).
This is the way of conveying the implementation details to 
programmers

During the requirements phase of a project, analysts can take use cases to the next level by providing a more formal level of refinement. When that occurs, use cases are often refined into one or more sequence diagrams.
During the design phase, architects and developers can use the diagram to force out the system's object interactions, thus fleshing out overall system design.
The sequence diagram and class diagrams would be the implementation detail.