Traditional versus OOA lecture Review-3 Use case Realization

hi ,
today I will discuss on the various attributes of OOA.
Use Case realization:-The process of elaborating the detailed design with interaction diagrams of particular Use Case.
Design patterns:- Standard design techniques and templates that are widely recognised as good practise.
Sepration Of responsbilities:- a design principle to segregate classes into separate components based on the primary focus of the classes
Dependancy Relationship :-a relationship between packages, classes, or use cases that indicates a change in independent item will require a corresponding change in dependant item.
Sequence diagram:- Sequence diagrams map the scenarios described by use cases in step by step detail to define how objects collaborate to achieve your application’s goals.